... .primary voltage:3 phase380V 3.steel and alloy welding KH-500 Sillicon Controlled Gas Shielded Welder:Product description:1 Small splashing, great ... After pickling, Parkerizing, powder coat, paint coating the case of machine, which provides the case firm, anticorrosion and no shed.9 ... /1.0/1.2mmWeight150kgOverall dimension(mm)440*680*790 KH-500 Sillicon Controlled Gas Shielded Welder