About: http://webisa.webdatacommons.org/129110218

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	Although shown as a single flange or ring, multiple flanges or rings or other structures such as raised axial ribs, columns or the like could be used as the inner support member.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com