About: http://webisa.webdatacommons.org/219975143

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	A wide variety of materials such as natural rubber, synthetic rubber and thermoplastic elastomers are suitable for forming the flexible valve 45 with thermoplastic elastomers being preferred.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com