About: http://webisa.webdatacommons.org/391565655

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	Using a vacuum or reducing atmosphere, such as hydrogen, can also prevent oxidation of the molten metallic material.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com