... .Stamping parts 3.Material: aluminum 4.Surface treatment : anodize Cell phone casing /castings and stampings1.Specification: (L*W*H): ... normal punch press 5 to 300 tons, turret punch press, (laser) cutting machine, hydraulic bending machine, hydraulic shearer, welding machine ... parts, auto parts, electric equipment parts and construction hardware . Cell phone casing,aluminum electrical equipment shell