About: http://webisa.webdatacommons.org/211798771

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 rolling membrane may be formed from a flexible material, such as silicone, polyurethane, or other elastomer.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com