About: http://webisa.webdatacommons.org/235675469

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 order to improve the mechanical strength, the covering D can have a multilayer structure, for example by successively applying layers.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es