About: http://webisa.webdatacommons.org/102259705

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	In essence, sequential layers of nickel and a noble metal such as palladium are deposited over the base metal of the leads tips, commonly copper (or Alloy 42).
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr