About: http://webisa.webdatacommons.org/286401665

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	Jewel orifice plates 106 are constructed of relatively hard materials including sapphire, ruby, ceramics, and diamond, and have a precisely drilled or otherwise machined center orifice of a desired size and geometry.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com