About: http://webisa.webdatacommons.org/24372707

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	Just read the description and view the picture if you have any doubts!Here is a chart that might help you identify which metric pipe you have:
http://www.w3.org/ns/prov#wasQuotedFrom	flexpvc.com