... welding machineMCU + DSP digital control, control waveform exactly, one pulse drop of the transition implementation. Minimal welding spatter, good ... rate, good weld forming, small welding deformation. These series machines have clear up the wire ball when end ARC ... small size, ease of movement., against dust and rain.Pulse MIG/MAG WELDING MACHINEDigital TERTION 3500 Digital TERTION 4000Digital TERTION ...