About: http://webisa.webdatacommons.org/98285554

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 toe link 164 of the expandable gripper assembly has an outer surface that is preferably roughened to permit more effective gripping against a surface, such as the inner surface of a borehole or passage.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr