About: http://webisa.webdatacommons.org/187791506

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	Alternatively, the textured surface 22 may be omitted and the raw face of the appropriate layer used in its place. ??? The second and fourth layers 16, 18 may be made of metal other than aluminium.
http://www.w3.org/ns/prov#wasQuotedFrom	sumobrain.com