About: http://webisa.webdatacommons.org/393674575

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	Further, instead of tin layer, it is preferable to cover with protective film composed of at least one kind selected from zinc, nickel and phosphor or protective film composed of precious metal such as gold, platinum.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr