... excellent weld,deep penertration and little electrode consumption. AC/DC TIG welding is mixed function,excellent weld,deep penertration and ... -chip microcomputer control function,Preset various welding parameters.AC/DC pulse function,realizing both-side molding under single-side welding.Improving ... post-flow time,current dropdown time and liftarc current. With the folw,heat and so on many kinds of ...