About: http://webisa.webdatacommons.org/276529432

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	Wheels and pulleys, such as 47A, 49A, 38A, 53, 54, 146A and 146B may be made of a machineable plastic such as Teflon???, although any other suitable plastic, metal or other material may be used.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es