... -500 Melting pole gas shielded welding machine MAG welder, MIG welder, NBC-270,NBC-350, NBC-500 Melting ... machine, mine shipyard and pertro chemistry etc. ModelNBC-270NBC-350NBC-500Power Voltage3 Phase 380V Rated input capacity9.5KVA14.4KVA25KVARated input current14.4A22A38AWelding voltage ... typeseparated typeseparated type NBC-270,NBC-350, NBC-500 Melting pole gas shielded welding machine