About: http://webisa.webdatacommons.org/170593079

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	They are used for grinding of granite, marble and other types of stones.
http://www.w3.org/ns/prov#wasQuotedFrom	toolocity.com