Answer:
Metal inert gas or Metal Active Gas
Explanation:
Gas Metal Arc Welder(GMAW) also is also termed as Metal Inert Gas(MIG) welder or Metal Active Gas (MAG) welder.
Gas Metal Arc welding is a process in which 2 metal pieces are melted through the use of electricity and joined together. A continuous wire is fed through the welding gun, which heats up the metal. This type of welding was introduced back in 1949 and was used for welding of Aluminium.
