About: http://webisa.webdatacommons.org/212081502

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 components may be formed from the same or different materials, including but not limited to stainless steel or other metals, Elgiloy???, nitinol, titanium, tantalum, metal alloys or polymers.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk