About: http://webisa.webdatacommons.org/243232017

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	Internally, the compressor valve is composed of a sealing plate or a series of rings and biasing elements such as helical springs.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com