About: http://webisa.webdatacommons.org/42329009

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	Such a spacer is made of a non-magnetizable material such as machined stainless steel or plastic, for example nylon or TEFLON fluoropolymer.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com