About: http://webisa.webdatacommons.org/422907732

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 membrane 22 may be of any suitable material, such as a plastic film or metal foil or a laminate of such materials fastened to the end surface of the annular insert member 23.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es