About: http://webisa.webdatacommons.org/325446694

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	However, their characteristics such as the thermal stability and durability thereof have not always been satisfactory and they have also had the problems of manufacture and handling.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr