Flat Washer, Sealing Washer, Hose Clamp manufacturer / supplier in China, offering M6*10*1 DIN7603A Solid Copper Sealing Flat Washer, DIN125 Stainless Steel 304 Flat Washer M8 M10 Flat Washer, Factory Customized Shim Thin Flat Washers SS304 Stainless Steel Gasket and so on.