About: http://webisa.webdatacommons.org/305366115

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 rivet is made of an appropriate material such as aluminum alloy, brass and stainless steel, while the mandrel is usually made of a spring material.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com