... is function,excellent weld,deep penertration and little electrode consumption. AC/DC TIG welding is mixed function,excellent weld,deep penertration ... . Digital single -chip microcomputer control function,Preset various welding parameters.AC/DC pulse function,realizing both-side molding under single-side ... %5-95%5-95%Cleaning width(%)10-50%(Adjustment for AC)Rated duty cycle(%)60%60%60%Dimension L *W*H ...