About: http://webisa.webdatacommons.org/243167946

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 certain non-limiting embodiments of the method in which the working portion is a contact portion, the contact portion may include a contact surface and the article is one of a rolling mill roll and a seal ring.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com