About: http://webisa.webdatacommons.org/38983254

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	The porous metal structure body is molded and sintered so that the portion other than the cavities has a porosity of 20 to 50% by volume.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com