... JIS, ISO,GB,ANSI 2)Washers type:flat ,spring ,lock,star 3)Accept customization Specifications of Washers: 1 Standard: DIN, BS ... 7) Dacromet 8) Mechanical Galvanizing 9) Hot-dip Galvanizing5 Type 1) Spring washers 2) Flat washers(plain washer,IFI, ... ) Working Process Include: cold punching, machining, CNC machine.Applications of Washers: 1) Agri machines2) Automobiles3) Earth-movers4) Railways5) ...