About: http://webisa.webdatacommons.org/80645184

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	Other fillers can include a glass fiber or lignin or cellulose based fibers, ceramic particles, an inert silicate material, etc Where the product is a polymer concrete, gravel or sand or other minerals may be used.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com