About: http://webisa.webdatacommons.org/159409232

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 spring is made from Mylar flexible polyester film, plastic, spring metal or other elastically deformable material.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com