Assertion: gas welding | /r/HasProperty | tig
Facets:
Source sentences:
text: Meredith named the process Heliarc because it used a tungsten electrode arc and helium as a shielding gas, but it is often referred to as tungsten inert gas welding (TIG).
text: Tungsten Inert Gas Welding (TIG), also known as Gas Tungsten Arc Welding (GTAW).