About: http://webisa.webdatacommons.org/361018599

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	According to the present invention, it has been found that suitable materials for the jewel orifice are diamond or sapphire or other erosion resistant material or the like.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr