About: http://webisa.webdatacommons.org/95192634

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 shaft can be made of steel, although other metals and other material such as graphite, titanium, and fiberglass can be used if desired.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com