About: http://webisa.webdatacommons.org/179711054

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	A lighter material such as plastic or a metal such as aluminum or a high strength light metal alloy may be used to form the pipe walls.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk