Advanced IGBT inverter technology, quick cutting speed, smooth cutting edge, no need to grind. The pressure regulating valve does water-proof automatically, 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.