About: http://webisa.webdatacommons.org/237464468

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	Various additives can be employed which serve to provide different properties, e.g., fillers such as barytes, clay, calcium sulfate, or ammonium phosphate may be added to lower cost and improve physical properties.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk