Large Size Certificated Ring Neodymium Magnet
NdFeB magnet offer the strongest magnetic power today. They are particularly suitable for high volume production in a wide variety of shape and size. Precise dimensional control is achieved in machining processes.
1. Applications: Motors, Generators, Sensors, Speakers, Earphones and other musical instruments, Magnetic therapy devices, Magnetic Chuck, Magnetic bearings and couplings, NdFeB Pot Magnet and other magnetic applications.
2. Grade: N35-N52, N35M-N50M, N35H-N48H, N35SH-N45SH, N28UH-N42UH, N28EH-N40EH, N28AH-N38AH.
3. Shape: Arc, Customized Design.
4. Coating: Ni, Ni-Cu-Ni, Zn(Cr3+), Tin, Epoxy, Ni-Ag, Ni-Au, Passivation, Parylene, etc.
5. Size: Customized size per your requirements.
6. Certification: ISO9001: 2008, ISO/TS16949: 2009 and RoHS.
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/ Sintered NdFeB Magnet
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Grade
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Residual Induction (Br)
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Coercive Force (Hcb)
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Intrinsic Coercive Force (Hcj)
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Max Energy Product (BH)max
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Temp. Coefficient Tk
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Max Working Temp.
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Curie Temp.
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T
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kGs
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kA/m
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kOe
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kA/m
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kOe
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kJ/m³
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MGOe
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%/ºC(Br)
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%/ºC(Hcj)
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ºC
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ºC
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N35
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1.17-1.22
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11.7-12.2
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≥868
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≥10.9
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≥955
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≥12
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263-287
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33-36
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-0.12
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-0.70
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80
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310
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N38
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1.22-1.25
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12.2-12.5
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≥899
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≥11.3
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≥955
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≥12
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287-310
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36-39
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-0.12
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-0.70
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80
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310
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N40
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1.25-1.28
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12.5-12.8
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≥907
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≥11.4
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≥955
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≥12
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302-326
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38-41
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-0.12
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-0.70
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80
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310
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N42
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1.28-1.32
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12.8-13.2
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≥915
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≥11.5
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≥955
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≥12
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318-342
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40-43
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-0.12
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-0.70
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80
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310
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N45
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1.32-1.38
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13.2-13.8
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≥923
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≥11.6
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≥955
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≥12
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342-366
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43-46
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-0.12
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-0.70
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80
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310
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N48
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1.38-1.42
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13.8-14.2
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≥923
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≥11.6
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≥955
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≥12
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366-390
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46-49
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-0.12
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-0.70
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80
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310
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N50
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1.40-1.45
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14.0-14.5
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≥796
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≥10.0
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≥876
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≥11
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382-406
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48-51
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-0.12
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-0.70
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60
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310
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N52
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1.43-1.48
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14.3-14.8
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≥796
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≥10.0
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≥876
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≥11
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398-422
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50-53
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-0.12
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-0.70
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60
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310
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N35M
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1.17-1.22
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11.7-12.2
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≥868
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≥10.9
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≥1114
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≥14
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263-287
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33-36
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-0.12
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-0.70
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100
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310
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N38M
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1.22-1.25
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12.2-12.5
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≥899
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≥11.3
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≥1114
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≥14
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287-310
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36-39
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-0.12
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-0.70
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100
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310
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N40M
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1.25-1.28
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12.5-12.8
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≥923
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≥11.6
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≥1114
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≥14
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302-326
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38-41
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-0.12
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-0.70
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100
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310
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N42M
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1.28-1.32
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12.8-13.2
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≥955
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≥12.0
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≥1114
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≥14
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318-342
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40-43
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-0.12
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-0.70
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100
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310
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N45M
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1.32-1.38
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13.2-13.8
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≥995
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≥12.5
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≥1114
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≥14
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342-366
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43-46
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-0.12
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-0.70
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100
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310
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N48M
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1.37-1.43
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13.7-14.3
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≥1027
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≥12.9
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≥1114
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≥14
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366-390
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46-49
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-0.12
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-0.70
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100
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310
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N50M
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1.40-1.45
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14.0-14.5
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≥1033
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≥13
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≥1114
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≥14
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382-406
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48-51
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-0.12
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-0.70
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100
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310
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N35H
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1.17-1.22
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11.7-12.2
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≥868
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≥10.9
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≥1353
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≥17
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263-287
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33-36
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-0.12
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-0.70
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120
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310
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N38H
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1.22-1.25
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12.2-12.5
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≥899
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≥11.3
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≥1353
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≥17
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287-310
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36-39
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-0.12
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-0.70
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120
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310
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N40H
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1.25-1.28
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12.5-12.8
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≥923
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≥11.6
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≥1353
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≥17
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302-326
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38-41
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-0.12
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-0.70
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120
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310
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N42H
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1.28-1.32
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12.8-13.2
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≥955
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≥12.0
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≥1353
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≥17
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318-342
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40-43
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-0.12
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-0.70
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120
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310
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N45H
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1.32-1.36
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13.2-13.6
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≥963
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≥12.1
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≥1353
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≥17
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342-366
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43-46
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-0.12
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-0.70
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120
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310
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N48H
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1.37-1.43
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13.7-14.3
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≥995
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≥12.5
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≥1353
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≥17
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366-390
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46-49
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-0.12
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-0.70
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120
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310
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N35SH
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1.17-1.22
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11.7-12.2
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≥876
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≥11.0
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≥1592
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≥20
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263-287
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33-36
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-0.11
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-0.65
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150
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320
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N38SH
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1.22-1.25
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12.2-12.5
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≥907
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≥11.4
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≥1592
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≥20
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287-310
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36-39
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-0.11
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-0.65
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150
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320
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N40SH
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1.25-1.28
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12.5-12.8
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≥939
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≥11.8
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≥1592
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≥20
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302-326
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38-41
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-0.11
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-0.65
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150
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320
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N42SH
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1.28-1.32
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12.8-13.2
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≥987
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≥12.4
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≥1592
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≥20
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318-342
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40-43
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-0.11
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-0.65
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150
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320
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N45SH
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1.32-1.38
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13.2-13.8
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≥1003
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≥12.6
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≥1592
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≥20
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342-366
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43-46
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-0.11
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-0.65
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150
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320
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N28UH
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1.04-1.08
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10.4-10.8
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≥764
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≥9.6
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≥1990
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≥25
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207-231
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26-29
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-0.11
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-0.60
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180
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330
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N30UH
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1.08-1.13
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10.8-11.3
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≥812
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≥10.2
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≥1990
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≥25
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223-247
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28-31
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-0.11
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-0.60
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180
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330
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N33UH
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1.13-1.17
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11.3-11.7
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≥852
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≥10.7
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≥1990
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≥25
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247-271
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31-34
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-0.11
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-0.60
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180
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330
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N35UH
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1.17-1.22
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11.7-12.2
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≥860
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≥10.8
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≥1990
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≥25
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263-287
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33-36
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-0.11
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-0.60
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180
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330
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N38UH
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1.22-1.25
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12.2-12.5
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≥876
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≥11.0
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≥1990
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≥25
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287-310
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36-39
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-0.11
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-0.60
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180
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330
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N40UH
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1.25-1.28
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12.5-12.8
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≥899
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≥11.3
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≥1990
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≥25
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302-326
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38-41
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-0.11
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-0.60
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180
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330
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N42UH
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1.28-1.32
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12.8-13.2
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≥899
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≥11.3
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≥1990
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≥25
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318-342
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40-43
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-0.11
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-0.60
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180
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330
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N28EH
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1.04-1.08
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10.4-10.8
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≥780
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≥9.8
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≥2388
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≥30
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207-231
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26-29
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-0.11
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-0.55
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200
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330
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N30EH
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1.08-1.13
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10.8-11.3
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≥812
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≥10.2
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≥2388
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≥30
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223-247
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28-31
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-0.11
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-0.55
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200
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330
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N33EH
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1.13-1.17
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11.3-11.7
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≥836
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≥10.5
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≥2388
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≥30
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247-271
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31-34
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-0.11
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-0.55
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200
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330
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N35EH
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1.17-1.22
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11.7-12.2
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≥876
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≥11.0
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≥2388
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≥30
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263-287
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33-36
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-0.11
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-0.55
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200
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330
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N38EH
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1.22-1.25
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12.2-12.5
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≥899
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≥11.3
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≥2388
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≥30
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287-310
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36-39
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-0.11
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-0.55
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200
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330
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N40EH
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1.25-1.28
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12.5-12.8
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≥899
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≥11.3
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≥2388
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≥30
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302-326
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38-41
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-0.11
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-0.55
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200
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330
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N28AH
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1.04-1.08
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10.4-10.8
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≥787
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≥9.9
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≥2624
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≥33
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207-231
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26-29
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-0.10
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-0.50
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230
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350
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N30AH
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1.08-1.13
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10.8-11.3
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≥819
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≥10.3
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≥2624
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≥33
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223-247
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28-31
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-0.10
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-0.50
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230
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350
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N33AH
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1.13-1.17
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11.3-11.7
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≥843
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≥10.6
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≥2624
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≥33
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247-271
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31-34
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-0.10
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-0.50
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230
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350
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N35AH
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1.17-1.22
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11.7-12.2
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≥876
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≥11.0
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≥2624
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≥33
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263-287
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33-36
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-0.10
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-0.50
|
230
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350
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N38AH
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1.22-1.25
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12.2-12.5
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≥899
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≥11.3
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≥2624
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≥33
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287-310
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36-39
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-0.10
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-0.50
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230
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350
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*.
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*The above-mentioned data of magnetic properties and physical properties are given at room temperature.
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*\.
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*The max working temperature of magnet is changeable due to length-diameter ratio, coating thickness and another environment factors.
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