About: http://webisa.webdatacommons.org/80195285

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	Secured by epoxy cement or other suitable bonding material to the inside surface of each frame 21 is an air cathode 28 constituted by an active carbon layer sandwiched between two current-collector grids of nickel screen.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com