About: http://webisa.webdatacommons.org/72884728

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 walls are of inert and electrically insulating material, for example a suitable plastic such as polyvinyl chloride which can be reinforced with fiberglass.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com