About: http://webisa.webdatacommons.org/58157983

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	impregnated with various resins including the same epoxy resin used in the surface layer but with an anhydride curing agent.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com