About: http://webisa.webdatacommons.org/157705873

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	Cases are formed by adding carbon, nitrogen, chrome, boron or other elements to the steel or metal surface...
http://www.w3.org/ns/prov#wasQuotedFrom	globalspec.com