About: http://webisa.webdatacommons.org/269741798

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	Generally, metals, such as iron, aluminium or magnesium, are used, and in particular in the form of porous powders.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk