About: http://webisa.webdatacommons.org/193597897

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 stop mechanism 321 comprises first and second, slidable nested or coaxially mounted stop tubes 322 and 323 formed of an appropriate material such as plastic or stainless steel.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com