About: http://webisa.webdatacommons.org/75934971

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The physical foaming methods use a physical foaming agent; an inert gas such as nitrogen and carbon dioxide, or a volatile substance such as a hydrocarbon and a fluorocarbon.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com