flat round washer 1)Size:M1.7~M50 2)Material ... :DIN,IFI,BS,ISO 4)Finish:zinc-plated flat round washer Standard: DIN125, DIN126, DIN9021, DIN433,DIN440, DIN7349, ... Standard:DIN,IFI,BS,ISO 4)Finish:zinc-plated flat washer 1. Standards1. ISO, DIN, AS/NZS, GB, ... pay for the loose at once8. Surface treatment8. Passivation,Galvanized,dacromet ,black chromium, and according your requirement9.Packing9. standard10 ...