About: http://webisa.webdatacommons.org/322847074

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 first metal layer is, most commonly, iron or an iron alloy such as a KOVAR??? or a stainless steel while the second metal layer is, most commonly, an aluminum or titanium alloy.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com