... , safe, high efficiency, energy saving,durable. DC Inverter CO2 Mig Welder(NBC-270)Model No:NBC-270Technical parameters: 1) Rated Input Voltage(V): AC380 ... 9310) Diameter of rod(mm): 0.6--1.011) CO2 Gas Flow(L/min): 8--1512) Output Reactor Insulation Grade: B13 ... self-regulation performance and steady welding process;4.Well-designed protection circuit, safe and reliable, easy to search malfunction;5. ...