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Ningbo Permanent Magnet Materials Co.,Ltd
Ningbo Permanent Magnet Materials Co.,Ltd  

Gold Index: 9165

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Neodymium Ring Magnets for speaker 

Payment Terms: T/T,L/C 
Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Means of Transport: Ocean,Land,Air
Packing: According to the practical ...
Shape: Ball
Type: Permanent
apply: motor,suction cups, horn
size:: According to customer's req...
Production Capacity: 1000000 piece one year
Delivery Date: According to the actual num...
Application: Industrial Magnet
Composite: NdFeB Magnet
Grade:: N35-52,M,H,SH,UH,EH
Composite:: Rare Earth Magnet

1. Material: Sintered Neodymium
2. Temperature: The max operation temperature is up to 200
3. Shape: Disc, Ring, Block, Segment, Cylinder, Trapezoid

product name Neodymium Ring Magnets for speaker

Production Information:

Type & Composite:

CJ Manufacturer of Permanent NdFeB Magnets 

Production Capacity:

Neodymium magnet: 2160Tons /year

Grade : 


Size : 

Many Moulds , also provide Custom-made Service 

Coating :

NiCuNi, Blue Zn,Color Zn, Zn3+Cr, gold, sliver, epoxy, phosphate, passivate

Country of Origin :

 Shanghai China ( Mainland ) 



Features and Application:


a/ Advanced production and R&D facilities are imported from Germany and Japan. 

b/ WHOLE free oxygen production line.

c/ Good coating control, PCT can reach 7 days for NICUNI . 

d/ Oxygen contain for our material less than 3%.

e/ Honesty--based on thanksgiving and duty. 


1/ Used in motors, generators,elevator tractions, pumps, wind energy etc.

2/ Used in loudspeakers,earphones,sensors etc.



Certificate, Packing & Payment:


ISO14001:2004 ; ISO9001:2008 ; ISO/TS16949:2009 ; SGS ; ROHS ; REACH   


Standard export packing . Soft material in CTN to protect magnet 

Payment Term:

T/T ; L/C ; West Union or others for negotiation 


skype Mr. wang jian bo
Tel: 86-574-87560803
Fax: 86-574-87560803
Mobile: 131 1663 6617
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Company Info

Ningbo Permanent Magnet Materials Co.,Ltd [China (Mainland)]

Business Type:Manufacturer, Trading Company
City: Ningbo
Province/State: Zhejiang
Country/Region: China (Mainland)

wang:   skype

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