... machinery,autos,equipments 3.surface:deburr,polishing,sandblasting,nickel plate aluminium machine part1.material:60612. Resistant corrosion,resistant aging, fastness, easy ... , autos, equipments.4.Surface treatments:deburr,polishing,sandblasting,nickel plating,chrome plating,oxidation,plastic,spray-paint,ect.5 Packing: Plastic film ...