About: http://webisa.webdatacommons.org/224949227

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 valve seat surface 56 material is an elastomer or other mechanically compliant material that compresses slightly when sealing against the valve seating portion 54.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com