... sheet,galvanized steel sheet or tube) stainless steel, copper , brass, aluminum ,etc2. process:punching,bending, ... metal partsMaterialCarbon steel; Stainless steel, aluminum alloy; Brass alloy; copper; Zinc alloy SPCC SGCC SGLCC etc.Machining processesMetal fabrication, ... Mainland)Material: Carbon steel; Stainless steel, aluminum alloy; Brass alloy; copper; Zinc alloy; iron(SPCC/SGCC/SEC C), etc.Color ...