the extension spring have different specification,it depends your requirement. Product Name: Extension SpringPlace of Origin: ChinaFeatures: 1) Wire diameter 0.1 ~ 40mm 2) Widely used in automobiles,machinery,sports apparatus,trampolines and other appliances 3) Main material: 65manganese steel,stainless steel,or as per customer_s requests
ORDER our torsion spring:
1.Various of torsion spring and wire form, even punch fitting of hareware.2.Usage of torsion spring:auto,motorcycle,industry,ariculture,mine,furniture,and so on 3.offered wire diameter from 0.2mm to 6mm
4.high quality and competitive pricing 5.Small and huge orders as well as OEM/ODM are accepted 6.Customised designs are welcome for torsion spring,so send us your specifications now
7.we have passed ISO9001:2008 and SGS certification.
Characteristics of torsion spring:
1)Including Single Torsion Spring,Dual Torsion Spring
2)The Torsion Spring used in car redirector and steering wheel
1)High service-life for Torsion Spring,have good hardness and resistance to both high and low temperatures.
2)Manufactured by fully automatic springs making machines,the cost is very low
3)Go thorugh TS16949,ISO14001,OHSAS18001
XIAMEN HONGSHENG - HARDWARE SPRING CO.,LTD. has been manufacturing Technical Springs since 2004. Being a long time partner of the Automotive Industry, the organization shares its Know-How and innovative ideas with the state of the art technology in the manufacture of the products. XIAMEN HONGSHENG - HARDWARE SPRING CO.,LTD. manufactures high precision springs laying emphasis on functionality and safety.