About: http://webisa.webdatacommons.org/281166515

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 300 is preferably made of elastomeric material such as silicone elastomer, but may be of other materials, such as isoprene.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es