... sale service SpecificationAccording to your requirement.MaterialStainless steel, brass, copper, aluminum, carbon steel, alloy steel etc.Surface TreatmentZn-plating, Ni-plating, ... equipment supplies, artware etc.PackagingInner plastic bag, outer carton box, and we can also pack products according to your requirements ... more ,please be free to contact with us : stainless steel shaft and metal bar roller