About: http://webisa.webdatacommons.org/414608043

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	Preferably, the stuffing box housing is provided with locking means, for example grooves or ridges, which cooperate with corresponding means in the device to maintain the stuffing box in a fixed position during use.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com