About: http://webisa.webdatacommons.org/3714463

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	Also, for the abrasive, it is preferable that two or more kinds of abrasives which have different average particle sizes to each other are contained.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com