About: http://webisa.webdatacommons.org/83397367

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	A cover 23 closes the top of the guiding member 16, and an opening 24 is provided in the reference member for directing a gaseous stream, such as air, through a line 25 from an air supply 26.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com