About: http://webisa.webdatacommons.org/367991793

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	They are generally only required for manufacturing applications, particularly in the aerospace field.
http://www.w3.org/ns/prov#wasQuotedFrom	onlinemetals.com