Assertion: ventilation | /r/HasProperty | welding
Facets:
Source sentences:
text: Ventilation and protection in welding, cutting and heating--Welding, cutting and heating in confined spaces 29 CFR 1926.353(c)(1) and (2) Ventilation and protection in welding, cutting and heating--Welding, cutting or heating of metals of toxic significance 29 CFR 1926.800(k)