<http://webisa.webdatacommons.org/421283166>	<http://www.w3.org/ns/prov#value>	"One preferred type of plasma-inert material is a ceramic material, for example, an oxide or nitride of a metal such as aluminum, zirconium, cerium or lanthanum." .
<http://webisa.webdatacommons.org/prov/358780930>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/421283166> .
<http://webisa.webdatacommons.org/421283166>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/421283166>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.fr> .