About: http://webisa.webdatacommons.org/453754114

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	Preferred coating materials include gray metals and compounds thereof such as chromium, titanium, palladium, tin, nickel, cobalt, as well as other materials such as silicon, carbon, copper, and aluminum.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com