About: http://webisa.webdatacommons.org/175680582

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	genduct you say field offset , how about full radius elbows , throat and heel. there is a trick. it is nice.
http://www.w3.org/ns/prov#wasQuotedFrom	hvac-talk.com