Shanghai Jinrui Norm Parts Supplies Co.,Ltd is one of the leading gb spring washer manufacturers and suppliers in China, welcome to buy gb spring washers, gb standard spring washer from our factory and company.
Shanghai Jinrui owes total assets of RMB 50 million with area of 5000㎡. The business covers 18 countries from five continents.Now three branches of Shanghai Jinrui are Shanghai Xingrui Bolt Factory, Shanghai Xingrui Wire Steel Factory, and Shanghai Xingrui Hot heading Factory.
GB standard Spring washer covers the dimensional requirments of metric series Spring WASHER.The standard of GB standard Spring washer is GB93 ,
The spring washer is widely used, mainly goes with bolt and screw. mostly made from steel 65Mn and steel #70 with high hardness.