About: http://webisa.webdatacommons.org/352582927

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	Cover 50 is also made of a polymeric material such as polycarbonate to match the material of housing 20 and includes a generally disc-shaped body 52 with a central opening 54 to permit axle 42 to extend outwardly therethrough.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com