welding machine Two functions of DC TIG and MMA, cheap but good HF ARC-starting,TIG welding lightly With function welding machineMain Characteristic: Two functions ... of DC TIG and MMA,cheap but good HF ARC-starting,TIG welding lightly With function of Arc ... .3-40.3-50.3-8Arc-sarting HF HF HF dc inverter welding machine