standard:DIN,ANSI/ASME,JIS,BSW Material grade:XM7(302HQ),304,304J3,(304HC),304M, ... quality-test equipment for ss washerstainless steel washerstandard:DIN,ANSI/ASME,JIS,BSWMaterial grade:XM7(302HQ),304,304J3,(304HC),304M,Size ... or bulk is according to the clients. stainless steel washer,bolt,nut,screw