A welding torch is a mechanical equipment, which fuses a small controlled flame with oxygen and gas fuel for melting two pieces of metal together. The tool features a long metal stem. The torch is connected to a fuel source by hose pipes. The welder can adjust the ratio of oxygen and fuel according to his convenience. This equipment is primarily used for metal cutting operations. It can cut hard metals, such as aluminum, tin and steel. The small blue flame produced by the torch produces heat for melting the metal. These equipment are used in a variety of applications, including welding, repairing, plumbing and fixing machinery. The gas welding torches are widely used in automotive industry, heavy metal industry and ship building industry. http://amplify.com/u/a1kop6