... TIG WELDING MACHINE 1.IGBT high frequency soft switch transforms, high efficiency , small volume, light weight DC PULSE TIG WELDING MACHINEMODELITEMWSM- ... factor is high; the3. Control characteristic is good, one machine multipurpose, easy to operate;4. has the arc to ... welding splash is small, the electric current is stable, the reliability is high, the welded joint forms PULSE TIG WELDING MACHINE