Since the injector of this set is self-adjusted, it can be used with oxygen- acetylene and oxygen - propane (LPG) gases without the necessity of any change. It has a single nozzle pipe. By changing the nozzles welding and heating operations can be made on sheet - metal of different thicknesses. The hose connection socket is fixed and used with a 6 mm hose. It is preffered by mechanics for battery manufacturing and since it is burnable with the mixture of propane + oxygen gases, and got a low weight.