... energy saving; NBC SERISENBC 270 Inverter semi-automatic gas shielded welding machineAdvanced inverter technology,simply circuit design,reduced size and ... teel,alloy steel,soft steel,etc,and various wire,the type about or up 350A suitable to ... current(A) Max thickness (mm) Efficiency(%) Dimensions(mm) Wire rod Diameter(mm)Weight (kg) NBC270380V/12.7A 27. ... 50-270Amps ≥0.8 85650*300*6200.8-1.0mm36.7