About: http://webisa.webdatacommons.org/257988032

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	FIG. 4 is an enlarged cross sectional view taken along a line A???A of FIG. 3, and illustrates the state that the abrasive pieces 10 are attached to the upper and lower surface of the head part 24.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com