Inverter MIG welding machine 1:IGBT technology, waveform control technology 2:Closed-loop feedback with voltage fluction Inverter (IGBT)Welding Machines1: IGBT inverter technology, waveform control technology2: Closed-loop feedback with voltage fluctuation compensation3:Reactor control technology with low-spatter welding, excellent welding joint and high welding deposition efficiency4: Perfect ...