About: http://webisa.webdatacommons.org/9169951

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	In still another aspect, inorganic fillers, such as alumina, calcium carbonate, carbon fibers, glass fibers, kaolin clay, mica, talc, wollastonite, and the like, can also improve the hardness of the silica-filled rubber compound.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es