About: http://webisa.webdatacommons.org/40916890

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 this embodiment the sheets 17, 18 are formed of a metal, such as aluminium, and the cavities 19, 20 have a depth of about 4 mm and a diameter at the opening thereof of about 7.5 mm.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com