About: http://webisa.webdatacommons.org/447376522

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	It is known to use abrasive fluids having magnetorheological properties to shape, finish, and polish objects, especially optical elements such as lenses and mirrors.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com