About: http://webisa.webdatacommons.org/22970400

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 base can be various metals such as copper, copper alloys, nickel, iron-nickel alloys, aluminum, and so on, and can be a single layer or multiple layers.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es