... . Remove all sharp edges. Powder coating. Fine quality. Competitive price. Aluminium metal box This is an electrical cabinet made by cold ... processes involved are cutting,NCT punching,welding and riveting.The manufacture range of our NCT punch press is 1.5mX4m with ... ), CR (st12), Galvanized Steel, Stainless Steel (304, 310, 316, 439), Aluminium, Angle, Tube, Flat bar, etc.