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GMAW or Gas Tungsten Arc Welding also more know as Tig Welding is a very popular welding method today. With this method you weld by heating up the base metal and create a weld puddle and at the same time add a filler material or filler rod into the welding pool. Tig welding is used mostly on thin materials, and also when quality is of highest importance. With GMAW you will be able to weld the highest amount of different metals and because of that it is a good solution for a lot of people