About: http://webisa.webdatacommons.org/235076886

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	It will be understood that other metals, such as copper, may be employed, but it has been found that aluminum provides the desired characteristics and is therefore preferred.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es