About: http://webisa.webdatacommons.org/423821990

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	Typically, the extension is a stub from which all coating material (e.g. oxide) is removed down to the bare support material; 5 mil (0.0127 cm) thick nickel ribbon is spot welded to the stub.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca