About: http://webisa.webdatacommons.org/153166949

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	It is from 4 to 50 ??m, in particular from 5 to 45 ??m, preferably from 6 to 40 ??m, the layer B being a proportion of from 5 to 90% of the total thickness.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com