About: http://webisa.webdatacommons.org/270531122

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	To reduce the heat transfer between the center tube and outer tube, the surface could be coated with a reflective metal such as aluminum, silver or gold or coated with a reflective ceramic powder such as titanium dioxide.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca