About: http://webisa.webdatacommons.org/181077802

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 diaphragm is a disk-shaped diaphragm made of a metal material such as stainless steel.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com