About: http://webisa.webdatacommons.org/358802833

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	Super-abrasive grinding wheels are a product that actually grinds hard materials such as ceramic, glass, quartz, steel???all materials that need to be manufactured to very high tolerances.
http://www.w3.org/ns/prov#wasQuotedFrom	trade.gov