... -saving FeatureAdvanced(MOSFET) inverter technolgy.DC inverter TIG welding machine ,minimizing ,lightness , high quality , portable and ... and arc force , little spatter , high welding qyality and strong strengthaUTO PROTECTION OF OVER-VOLTAGE ... , balance automatically when voltage is wavingApplicable for welding of all kinds metals such as steel, titanium ... and weld brush. tlg Inverter Welding Machine