About: http://webisa.webdatacommons.org/25002258

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	Forms made of other materials, such as steel, aluminum or other metals, have also been used.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com