Assertion: solder's lead | /r/ObjectUse | used in solder
Facets:
value: with tin
type: OTHER
value: widely
type: DEGREE
Source sentences:
text: Lead, and to some degree tin, as used in solder contains small but significant amounts of radioisotope impurities.
text: (Lead was once widely used in solders with tin, but has now been largely phased out for health reasons).