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metal inert gas welding: a method of welding in which the filler metal wire supplies the electric current to maintain the arc, which is shielded from the access of air by an inert gas, usually argon
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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