Advanced IGBT inverter technology, quick cutting speed, smooth cutting edge, no need to grind The pressure regulating valve is water-proof automatically, and the gas meter was molded together with the machine, no need to install it. High-frequency rising arc, with a high success rate After-blow time adjustable O.H & O.C protection, for long-term using With 2T/4T function to relieve user’s labor intensity Capable of cutting all metal plate.