About: http://webisa.webdatacommons.org/361465258

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	When the steel is a low carbon steel, the surface of the ring gear can be hardened by standard carburizing procedures well known to those skilled in the art.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr