... , brushing, sand blasting, shot blasting, milling, polishing powder coating, nickel plating etc. 4) Application: computer CPU, ... 3. Equipments: CNC machines, bending machine, Automatic spark machine, line cutting machine, shearing machine, machine lathe, ... inserting machine. 4. Surface treatment: Anodizing, powder coating, nickel plating, powder painting, chrome plating, zinc plating, mirror polished ...