... 2.DC argon arc welding machine 3.MOS/IGBT inverter technology TIG-140 WelderTechnical Specification Model Specification TIG-140Rated ... degreeIP21SArc-startingHFWeight(KG)9Dimension(mm)410x230x320Main Features of TIG-1401.Adopt with advanced MOS/IGBT inverter technology, ... from electromagnetisms disturb, no slag, smooth welding line.5.Argon, suit for stainless steel, copper, aluminum, steel, titanium ...