... sale service SpecificationAccording to your requirement.MaterialStainless steel, brass, copper, aluminum, carbon steel, alloy steel etc.Surface TreatmentZn-plating, Ni-plating, ... , shafts, screws, stamping parts and other metal parts. Our main production modes are designing and proofing based on customers’ drawings or ... ,please be free to contact with us : stainless steel shaft and metal bar roller