About: http://webisa.webdatacommons.org/405545133

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 protective coating can be a material that does not easily oxidize such as a layer of nickel under a layer of gold, for example.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com