About: http://webisa.webdatacommons.org/435493820

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	If the cellular core is prefoamed or otherwise foamed prior to applying the metallic layer, the blowing agent may be one or more conventional agents that release a gas, such as nitrogen or carbon dioxide.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com