Assertion: thorium | /r/ObjectUse | used as an alloying element
Facets:
value: in tig welding electrodes
type: LOCATION
value: in making welding electrodes
type: TEMPORAL
Source sentences:
text: Thorium is still being used as an alloying element in TIG welding electrodes but is slowly being replaced in the field with different compositions.
text: Thorium is used as alloying element in making welding electrodes.
text: Thorium is also used as an alloying element in nonconsumable TIG welding electrodes.