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Gas burners and torches are processing and welding products that use high-temperature heat. They are used in various situations from road pavement to soldering and bending PVC pipes. In high temperature examples, the temperature rises to 2,000°C. A propane torch is composed of three parts: a burner, a coupling, and a hose. The propane torch is attached to an LP gas cylinder, and burns while mixing gas and air to create a high-temperature flame. Some have hose lengths that can be changed according to the workable range, so they can be used for a wide range of high-temperature work. A gas torch emits flame when attached to a gas cylinder or a dedicated cylinder, and is convenient for narrow areas where you work close at hand. There are broadly two shapes of burner, horizontal and vertical, and depending on how the flame is emitted, there are concentrated flames, spiral screw flames and ring flames, etc. Therefore, it is necessary to select one that suits the purpose of use.