About: http://webisa.webdatacommons.org/276579920

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 PCB-substrate is formed of a suitable insulating material such as FR4 resin, BT resin, teflon or polyimide.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com