About: http://webisa.webdatacommons.org/147122467

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 buffer layer 21, 21' is formed of a non-magnetic, heat resistant material such as ceramic, stainless steel, or glass.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com