About: http://webisa.webdatacommons.org/243043971

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	An example of a suitable insulating spacer is a generally cylindrical tube made of a ceramic material, such as alumina or mullite.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com