About: http://webisa.webdatacommons.org/215970948

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	The base 8 can be made of a variety of materials including steel, aluminium, brass, bronze, plastic or the like and may be stamped, formed, or cast.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com