1,Suitable for various kinds of tube -- tube plate assembly method; 2,Helicopter compact structure, small volume; 3,IGBT power inverter control dc pulsed current and welding arc stability of high efficiency, strong, weld bead molding beauty! 4,Mandatory water cooling system, not affected by field hydraulic conditions such as restrictions, cooling fully, reliable convenient; 5,The cars type integration design, mobile free and easy to use; Applicable industries Petrochemical, boiler, shipbuilding, atomic energy, aerospace, refrigeration, pharmaceutical, food machinery, etc; Applicable products Boiler, pressure vessel, heat exchanger, etc