About: http://webisa.webdatacommons.org/211842157

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 metal is preferably either aluminum, nickel, copper, iron, titanium, magnesium, chromium, zinc, tin, silver, gold, and the platinum family of metals, including combinations or alloys thereof.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com