About: http://webisa.webdatacommons.org/200767354

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	The base 300 and the outer peripheral surface of the sleeve 120 or the base 300 and the core 320 may be coupled to each other by methods such as a bonding method, a welding method, a press-fitting method, or the like.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com