Assertion: borax's boron | /r/ObjectUse | used in the nonferrous-metals industry
Facets:
value: in aluminum castings
type: OTHER
Source sentences:
text: Boron is also used in the nonferrous-metals industry, generally as a deoxidizer, in copper-base alloys and high-conductance copper as a degasifier, and in aluminum castings to refine the grain.