About: http://webisa.webdatacommons.org/312837492

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 outer layers 12 and 13 may be copper or aluminum foil or other suitable conductive material if the resulting laminate is to be eventually used for printed circuit manufacture.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com