About: http://webisa.webdatacommons.org/394421475

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	In the heat treatment in a reducing atmosphere, a spontaneously formed oxide film on the surface is removed by reducing action of the reducing substance such as hydrogen and does not deposit again during the heat treatment.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es