NEW inverter arc welding machine (IGBT) 1.CE,ISO Certificate 2.Warranty 1 year. 3.Thickness:0.8-4.0mm MOSFET technology NEW inverter ... arc welding machine (IGBT) 1.CE,OEM Certificate2.Warranty 1 year ... in cases of over-voltage, low-voltage, over-current, over heat, safe and reliable. 4. Thrust current can be adjusted continuously ...