About: http://webisa.webdatacommons.org/277353445

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 order to further reduce stresses on the device, an overmold (such as shown in FIGS. 3 and 4) of a material such as silicone or polyurethane can be formed around the bellows to provide rigidity and columnar strength.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com