About: http://webisa.webdatacommons.org/35965374

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 a further feature, it is proposed that the pressure piece be made from a softer material, in particular aluminum, an aluminum alloy, zinc, plastic, and so forth.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com