About: http://webisa.webdatacommons.org/167470647

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	Metals, particularly aluminum, clearly overcome the problems associated with laminated wood modeling stock, but metal is relatively expensive, heavy and difficult as well as slow to machine to the desired shape.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com