About: http://webisa.webdatacommons.org/7228769

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	Historically, armor plate has been produced from various materials, including ceramics, metals, such as steel and aluminum, as well as composites of metals and other materials.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com