About: http://webisa.webdatacommons.org/407676246

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	Structural elements such as rods, tubes, and beams are normally made by casting, extruding, or rolling techniques to produce plastic or metal tubing, sheets, rods, beams, and the like.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com