About: http://webisa.webdatacommons.org/72531202

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 friction-generating surface 82 preferably comprises a sturdy, wear-resistant, heat-resistant material, such as the material used in automotive brake shoes.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com