About: http://webisa.webdatacommons.org/412128608

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 O-rings 102, 106, 122, and 128 may be formed of an elastomer such as Viton???, a registered trademark of E. I. DuPont, de Nemours & Co., and the gasket 112 may be formed of Chemlon.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com