... , good metal soldering rate, good weld forming, small welding deformation. MIG WELDING MACHINE MCU + DSP digital control, control waveform exactly, one pulse drop ... ., against dust and rainPulse MIG/MAG WELDING MACHINEDigital TERTION 3500 Digital TERTION 4000Digital TERTION 5000Input Voltage AC.(three phase) 220V~415V ±15 ...