... electrode, welding ferrous metal work pieces. Model BX1 630 AC Arc Welding MachineRated input voltage(V)1-380Rated input capacity(KVA ... adjustment;Use general electrode, welding ferrous metal work pieces;Stable arc, little spatter, deep penetration, ensure good welding quality;High efficiency ... , simple structure, easy to operate and maintain. BX1 630 AC Arc Welding Machine