About: http://webisa.webdatacommons.org/434464459

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	Gold, silver and platinum is also classified as non ferrous metals and interesting to remember that most rare and exotic metals such as tungsten, lithium, vanadium and zirconium are also examples of non ferrous metals.
http://www.w3.org/ns/prov#wasQuotedFrom	nonferrousmetals.co.za