Flat Washer, Sealing Washer, Hose Clamp manufacturer / supplier in China, offering Copper Flat Washer Manufacturer Flat Washer Copper Washer Set with Case, SUS 304 Flat Washer Spacer Gasket Fastening Parts with Zinc Finish, Customize M6 M8 M10 M12 DIN125 DIN127 Copper Flat Washer Brass Washer and so on.