About: http://webisa.webdatacommons.org/323950627

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	It is also known to form the separator plate from a composite material, such as a graphite composite or graphite-filled polymer.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com