About: http://webisa.webdatacommons.org/166770934

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 second sealing element can be formed of strips, which can be made of, for example, Teflon or metal, such as aluminium.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com