About: http://webisa.webdatacommons.org/224380679

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 membrane clamp ring, therefore, is generally secured to the membrane holder via a mechanical means, such as screws, bolts, clamps, or other known securing devices.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com