... steel,etc powder coating,etc excellent quality CNC bending 2011 metal fabrication partsMaterial:Cold rolled steel, ... or specific description. Making process:laser cutting, stamping, CNC bending, punching, welding, riveting, grinding, etc.Surface treatment:Powder ... CNC bending machine, plasma cutting machine, drilling machine, various kinds of welding equipment, oscilloscope, salt spraying tester etc. ...