About: http://webisa.webdatacommons.org/283810382

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	The majority-of such discs comprise an abrasive disc having a ???button??? fixed to a rear face, the button including a profile adapted to releasably engage with an appropriate tool fitting.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com