About: http://webisa.webdatacommons.org/409174515

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 first member 30 may be made from a suitable material such as aluminum but it may also be made from other metals such as steel or from any suitable hard material.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com