About: http://webisa.webdatacommons.org/406500229

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 sealing bead is a circumferentially enlarged portion of the outer surface of the tube and overlies the periphery of the recess 5 at the upper surface 4 in gastight sealing relationship therewith as shown in FIG. 3.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com