Adopt import thyristor module and integrated circuit control technology. Welding arc is stable, good adjust capacity, it can suitable all direction welding: it has little spatter. holding selector "yes/no" . Solid / flux cored welding. Easy to increase function and extend length of cable. The machine is strong, relible and wearable, it can suitable for adverse circumstances. Comparing with welding rod welding, the efficiency improved three times.