... .3. Utility: machinery, autos, equipments.4.Surface treatments:deburr,polishing,sandblasting,nickel plating,chrome plating,oxidation,plastic,spray-paint,ect. 2 ... , Tapping, Sandblasting and so on) 5. OEM & ODM services 6.Assembly work Better products ,Better service,Better world! punching machine processing aluminium ...