About: http://webisa.webdatacommons.org/391493714

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	??? Assume the tube is a round, hollow, and with uniform cross section, consistent OD, and consistent wall thickness
http://www.w3.org/ns/prov#wasQuotedFrom	pirate4x4.com