spring washer standard:DIN,GB,IFI,JIS material:spring steel,stainless steel. sizes:from 3mm to 60 mm. spring washerstandard:DIN,GB,IFI,JISmaterial:spring steel,stainless steel.sizes:from 3mm to 60 mm.we produce washers in large valumes based on ISO/TS 16949 SYSTERM.