About: http://webisa.webdatacommons.org/196622493

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 the embodiment, the spring forming the resilient pressure-generating means 8 or the resilient elements are made of metal, in particular of spring steel or special steel.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com