... is accept metal,cold rolled steel powder coating high quality control powder coated newest sheet metal enclosureMaterial:Cold ... bending, punching, welding, riveting, grinding, etc.Surface treatment:Powder coating, hot galvanized, painting, polishing, brushing,chrome/zinc/nickel ... etc.EQUIPMENT:CNC punching machine, CNC bending machine, plasma cutting machine, drilling machine, various kinds of welding ...