About: http://webisa.webdatacommons.org/14019316

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	While the preferred embodiment contemplates the use of a metal pre-form made of powdered steel particles, other metals and ceramic materials, such as alumina, silica and the like, are also within the scope of the invention.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com