About: http://webisa.webdatacommons.org/298552931

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	We tried to extend tool life further by using brushes impregnated with abrasives, such as aluminum oxide or silicon carbide.
http://www.w3.org/ns/prov#wasQuotedFrom	ctemag.com