new dc inverter TIGs-250 welder: 1: CCC&CE approved. 2: More attractive design. 3: Stable performance new dc inverter TIGs-250 welder:1:Adopts advanced IGBT inverter technology,using noncrystal core and power units,can meet IEC974 safety standard.2:Wide adaptability and can be applicable to welding carbon steel, stainless steel, alloy steel and cast iron etc.3:High-efficency, saving-energy, small ...