About: http://webisa.webdatacommons.org/429041633

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	Preferably, the lower portion is made of 380 cast aluminum or any other suitably strong material, such as metal, including steel, or fiberglass, plastic, composites and other similar materials.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com