About: http://webisa.webdatacommons.org/439182721

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	As shown best in FIGS. 2 and 3, each air spring includes an elongate bladder 20 made of plastic, neoprene rubber or other material capable of being inflated and with an air inflation stem 21 projecting from one end thereof.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com