1.OEM, 20 years 2.IGBT dc power 3.LCD Touch Screen,Aeronautical material 4.Automatic tracking the arc length 5.ISO9001,CQC Inverter TIG argon soldering machine About us: We are the loading manufacturer specialized in designing and manufacturing different kinds of Automatic Arc Welders, Tungsten Electrode Grinders, Quenching Medium Performance Analyzers, Tube end facing machines in China with ...