About: http://webisa.webdatacommons.org/257205413

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	In this regard, a counterpoise weight 124 of heavy metal, such as lead, is suitably secured by glue to the upper surface of the diaphragm 122 to further dampen vibration.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com