Inverter co2 mig welding machine 1 Reliable mig welding machine 2 IGBT mig welding 3 Small,light Inverter co2 mig welding machine 1 Reliable mig welding machine 2 IGBT mig welding 3 Small,light1.IGBT inverter technology with current control, reliable quality, stable performance. 2.Equip with closed loop feedback, constant voltage output, good at protest the fluctuation of voltage with automatic ...