... lead 5.modern CNC processing 1.Features:1. Raw materials: from pure aluminum to duralumin2. Resistant corrosion,resistant ... : machinery, autos, equipments.4.Surface treatments:deburr,polishing,sandblasting,nickel plating,chrome plating,oxidation,plastic,spray-paint,ect. ... Secondary machining 4.Surface treatment (Tumbling, Polishing, Tapping, Sandblasting and so on) 5. OEM & ODM services 6.Assembly ...