About: http://webisa.webdatacommons.org/433968145

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	Pics or websites are a must! http://alltemp-hvac.com/duct.gif Not sure if this is the program your looking for try here http://design2fab.com
http://www.w3.org/ns/prov#wasQuotedFrom	hvac-talk.com