About: http://webisa.webdatacommons.org/22270631

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 wave springs are preferably made from spring steel, and elastomers other than fluoroelastomers may also be used for the secondary seal if desired.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com