... steel casting pipe 1.Aluminum, zinc, steel, brass, 2.Surface treatment: polish, plating, 3.OEM stainless steel casting pipe1.Aluminum, zinc, steel ... polish, plating, 3.custom 1.Materialstainless steel,Aluminum alloy,etc 2.Process Aluminum casting, sand casting, die casting, gravity casting, ... OEM ODM service available. 9.Product All kinds of aluminum casting(unit weight ≥0.1kg) 10.Advantage Good ...