About: http://webisa.webdatacommons.org/72769684

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 base and/or lid sheets may comprise a single material, such as aluminum.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com