About: http://webisa.webdatacommons.org/293671046

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	One or both of the faces 502 a, 502 b may be covered with an elastomeric material, such as silicone, to affect sealing therebetween.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com