Assertion: rust | /r/HasProperty | necessary
Facets:
value: to remove it
type: PURPOSE
Source sentences:
text: If rust has already appeared on your weld, it is necessary to remove it completely, but it is also important to get rid of all contaminating particles that occur as a result of industrial metal processing.
text: If rust has already appeared on your weld, it is necessary to remove it completely, but it is also important to get rid of all contaminating particles that occur as a result of industrial metal processing.