About: http://webisa.webdatacommons.org/432393193

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	If it is desirable to manufacture the hub 132' from magnetically non-conducting, or poorly conducting, materials, such as light metal or alloy, a separate iron shield can be provided.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com