Machine Features:? 1. Vacuum tube output and strong, stable and reliable high sensitivity spark overcurrent protection circuit. Can be effectively cut off due to the large current output is too large to damage the mold, a more effective control sparking done automatically weld the whole process, to improve the efficiency of work. 4. Features overcurrent protection system to increase the life of the vacuum tube 5 pneumatic power pressure way to reduce the intensity of the work, upgrade voltage product quality. Installation of high-precision temperature control to ensure welding consistency