... steel,Website:http://www.everlastingdg.com, Carbon steel, Aluminum alloy, Copper alloy, etc. 2.Surface treatment: painting, electroplating, oxygenation, etc.3 ... INDUSTRIAL EQUIPMENTPrecision machining1.Material: Stainless steel, Carbon steel, Aluminum alloy, Copper alloy, etc. 2.Surface treatment: painting, electroplating, oxygenation, etc.3 ...