... Description SpecificationAccording to your requirement.MaterialStainless steel, brass, copper, aluminum, carbon steel, alloy steel etc.Surface TreatmentZn ... -plating, Ni-plating, Cr-plating, Tin-plating, copper-plating, the wreath oxygen resin spraying, the heat ... shafts, screws, stamping parts and other metal parts. Our main production modes are designing and proofing based on customers’ drawings ...