About: http://webisa.webdatacommons.org/435988835

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 beams, the additional mass portion, and the mid-supporter holding them are made of an identical piezoelectric vibrating material, such as quartz.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com