About: http://webisa.webdatacommons.org/405707212

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 inner tubular member 32 is generally made of polyethylene such as Marlex HDPE. In alternative embodiments, the inner tubular member 32 is lined with a lubricious material such as polytetrafluoroethylene (PTFE).
http://www.w3.org/ns/prov#wasQuotedFrom	google.es