... , tempering, drill bit welding, saw blade welding, motor rotor welding, tungsten rod annealing as well as single crystal drawing, characterized by a ... , saw blades, steel tubes and motor rotors, as well as tungsten rod annealingGP30-C3A3025300-4503-phase380V50 KVA601-1.50.21000×1200×1800GP60 ...