About: http://webisa.webdatacommons.org/165692251

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	FIG. 2 is an enlarged detail showing the sharp edge of the sleeve valve and the uniform diameter of the cone minimizing lift-off forces when the valve is unseated.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com