... is welcome Metal stamping parts,punched parts,precision stamping parts. Iron Door Hinge 1.Material:stainless steel, carbon steel, spring steel ... ,iron, , brass ,aluminum,2. Applied software for specification drawings:Pro/E, Auto CAD, Solid Work 2001 ... /nickel/chrome plating, hot galvanized, painting, dichromate plating,copper wiredrawing. Iron Door Hinge