About: http://webisa.webdatacommons.org/313940852

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 a preferred embodiment the said venturi is made of a metal, such as aluminium, which is polished.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com