<http://webisa.webdatacommons.org/prov/297881049>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/339079213> .
<http://webisa.webdatacommons.org/339079213>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .
<http://webisa.webdatacommons.org/339079213>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/339079213>	<http://www.w3.org/ns/prov#value>	"The wear disc 106 is sandwiched between the cap plate 72 and the fixture mounting plate 38, and is constructed from a material such as ultra high molecular weight polyethylene, TEFLON??? fluorocarbon, or nylon that provides a smooth, low friction surface for the fixture mounting plate 38 to travel on as it rotates with the shaft 30." .