Assertion: wetting agent | /r/CapableOf | harden oil
Facets:
Source sentences:
text: The surfactants may also be used advantageously for a multitude of other chemical-industrial processes, for instance generally in the metals processing industry, for example in cooling lubricants, hardening oils, hydraulic oil emulsions, polishing pastes, mold release agents, drawing oils, mordants, metal cleaners or metal driers.