About: http://webisa.webdatacommons.org/272217153

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	hields may be provided for each horizontal length of tube and may be made from metal such as stainless steel or ceramic material depending upon the temperature which it has to withstand which may, for example, be as high as1600.degree.
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com