About: http://webisa.webdatacommons.org/311643476

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	It was also very expensive relative to the more common materials such as steel and aluminum.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org