Materials: carbon steel, alloy steel, stainless steel, copper Standards: ISO, DIN, ANSI, JIS, BS, non-standard Features:screw1) Materials: carbon steel, alloy steel, stainless steel, copper2) Finish: zinc plated (trivalent chromium or sexivalent chromium), dacromet plated, nickel plated, oxidation plated, plain finish3) Can produce according to customers' drawings and/or samples4) Standards: ISO, ...