About: http://webisa.webdatacommons.org/52097351

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 rotor contains a generally cylindrical bushing 434 made of a hard material such as ceramic, pyrolitic carbon, or a synthetic crystal such as sapphire.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es