About: http://webisa.webdatacommons.org/34544064

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 desired specific gravity of the intermediate layer may be obtained by adding a filler such as barium sulfate, zinc oxide, titanium dioxide and combinations thereof to the intermediate layer blend.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es