... fabrication, parking system, lift platform, steel structure, auto parts, fifth wheel, garage, fasteners, crane parts, elevator parts, machining parts, mouldsMaterialcarbon steel, ... stainless steel, aluminum alloy, copperProcedureCutting,stamping,punching,threading,bending,welding,grinding,machining,surface finishSurface finishingzinc plating, hot dipped galvanized ...