About: http://webisa.webdatacommons.org/258047545

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	ion heat treatment and which usually contain chromium and other refractory elements such as tungsten and tantalum.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr