GMA has various meanings in the Technology category. Discover the full forms, definitions, and usage contexts of GMA in Technology.
Gas metal arc welding, sometimes referred to by its subtypes metal inert gas (MIG) welding or metal active gas welding, is a welding process in which an electric arc forms between a consumable wire electrode and the workpiece metal, which heats the workpiece metal, causing them to melt, and join.
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