About: http://webisa.webdatacommons.org/233648599

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 grommet 44 may be made of any suitable flexible plastic material, for example polyurethane or silicone, that effectively seals the valve 38 against the valve seat 42 from fluid flow communication when engaged.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr