About: http://webisa.webdatacommons.org/86184041

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 machined external surfaces 406 can be coated with a metal, such as nickel, copper or iron, again to prevent corrosion at high temperatures.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es