* Product featuresThe product is made by the applied technique of rocket propulsion, therefore, the theory is quite different from others. It can cut any metal & any concrete structure by the high speed (over Mach 2.8), high temperature (over 4,400 deg.C) flame which is generated in the torch by continual short-circuit control. And it is also used for repairing of ship-outside, & removing alien substances before painting. The fuel of existing cutters is "oxygen+propane" or "oxygen+acetylene", but the fuel of Supersonic gas cutters is "oxygen+petroleum." So, the fuel costs only 1/5 of existing ones. Its cutting speed is 2 times faster than that of existing ones, as it has high temperature flame. And it is very safe to use.* ApplicationsScrap the military tanks, ships, etc.Gas cutting the alloy metals.Scrapping the vessels.Slag cutting.Cutting construction pile.Cutting the all of compound metals.Emergency cutout to rescue