About: http://webisa.webdatacommons.org/116197588

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	Other metals such as magnesium, tantalum and the like could be employed, of courese but are, ordinarily, more expensive than necessary.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es