... highly effective and energy saving; NBC SERISENBC 270 Inverter semi-automatic gas shielded welding machineAdvanced inverter technology,simply circuit design,reduced size and weight, ... design,the whole function is reliable,easy to maintain,automatic voltage pulsation compensation capability.Mostly used for carbon teel ... 300*6200.8-1.0mm36.7 NBC 270 Inverter semi-automatic gas shielded welding machine