About: http://webisa.webdatacommons.org/163471137

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	Instead of using lathe dogs, which are kind of a nuisance to set up, the constant face system uses hydraulic or other force to grip and drive the spindle end.
http://www.w3.org/ns/prov#wasQuotedFrom	cnccookbook.com