... , energy saving. 2,mosfet design 3,Welding thickness:2.0-12.0 ZX7-400amp heavy duty welding machine A.Feature and ... .Be able to weld stainless steel, carbon steel, and other non-ferrous metals.9.Suitable for vehicle manufacturing, shipbuilding, chemical, boiler, food ... steel, carbon steel, copper and other non-ferrous metals Thickness of Welded Plate(mm)2.0-12.0Dia of Welding Rod (mm)2 ...