About: http://webisa.webdatacommons.org/4447996

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	Various other measures for controlling thermal expansion effects are disclosed, including thickening of fittings, use of expansion loops, and especially designeddouble-walled elbow and T-fittings.
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com