About: http://webisa.webdatacommons.org/277013738

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	The stiffening material can for example be epoxy resin, polyurethane or silicone, particularly silicone rubber.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com