About: http://webisa.webdatacommons.org/418146676

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 sealing device, such as an O-ring, may be located between each tray and the adjacent tray or trays in order to provide a vacuum seal between one tray and the next.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com