... iron; Malleable iron; Tungsten steel, etc. 2. Machining processes: Metal fabrication, cnc machining, welding, forming, shaping, punching, drilling, ... : Polishing, zinc plating, nickel plating, chrome plating, powder coating, e-coating, dip coating, phosphate coating, anodize, ... PVC powder coating, dichromate plating, decrement plating, etc. 4. ...