... easy to carry, 3.220V, single phase, 4.Electrode welding. Inverter IGBT ARC Welding Machine 225ampModel:ARC225/200BB/200/ ... Steel, Medium Carbon Steel, Alloy steel, etc Advanced Inverter Technology: Inverter frequency up to 100KHZ, and conversion efficiency to 85% ... dynamic characteristics, small spatter and stable arc, easy to control weld pool and good weldment. Perfect Protection System: Automatic ...