TIG, MIG, MMA, multi-function, submerged welders and plasma cutters, such as: ZX7 series DC TIG/MMA Welding Machine, WSME series AC/DC pulse TIG/MMA Welding Machine, NBC series CO2 shielded Welding Machine, SUPER series AC/DC TIG/MMA/CUT welding machine, MZ series Automatic Submerged Arc Welding Machine, LG series plasma Cutting Machine, etc.