Assertion: rubber | /r/CreatedBy | adding 30% of sulphur
Facets:
value: during vulcanization
type: TEMPORAL
Source sentences:
text: Ebonite is made by adding 20 to 25% sulphur and battery case rubber is made by adding 30% of Sulphur during vulcanization.
text: Ebonite is made by adding 20 to 25% sulphur and battery case rubber is made by adding 30% of Sulphur during vulcanization.