About: http://webisa.webdatacommons.org/113301839

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 sliding bar 8 is supported at each end and in the center by bearings 24, which are small button-like projections extending from the bottom of the bar and made of Teflon or other bearing material.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es