About: http://webisa.webdatacommons.org/288512769

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	Rigid hollow delivery arm 18 may be made of a metal such as aluminum or, preferably, of a transparent engineering polymer such as polycarbonate.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk