About: http://webisa.webdatacommons.org/212494012

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	Ordinary spacer bars are often made of aluminum or other alloys that readily conduct heat or cold from the glass surfaces, while warm-edge spacer bars provide an insulating barrier.
http://www.w3.org/ns/prov#wasQuotedFrom	weathermaster-window.com