MMA would stand for Manual Metal Arc (Welding) one would assume, gotta love a world full of blasted acronyms! I've worked out the welding trade is nearly as bad as computers

MAG is Metal Active Gas (welding), this is where a shielded gas such as CO2 is used instead of an inert gas such as Argon (which is where MIG comes from, Metal Inert Gas).
I was thinking of commissioning a feasibility study to utilise the stray arc radiation, maybe in exchange for holding the torch she could pick up a wicked tan?!

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