About: http://webisa.webdatacommons.org/359398797

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 laser welding, a process gas such as argon, helium, nitrogen or carbon dioxide is generally used for protecting the welding seam or to support the welding process.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com