About: http://webisa.webdatacommons.org/40584954

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	Accordingly, protective materials can include, without limitation, copper, gold, silver, zinc, tin, titanium, silicon, chromium, tungsten, zirconium, and mixtures thereof, including carbides, nitrides, and alloys.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com