About: http://webisa.webdatacommons.org/116892894

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 present invention relates to use with sedimentary rocks, such as sandstones, limestones, shales, chalk and the like, and in rocks of this type, the rock destruction takes place for depths of cut typically smaller than 3 mm.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com