About: http://webisa.webdatacommons.org/192886267

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 tube 8 is made of a chemically stable material such as stainless steel or aluminum and accommodated within the tubular space to surround helically the inner cylindrical wall 9.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com