About: http://webisa.webdatacommons.org/53122729

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	A component other than silicon oxide which may be contained in the first covering layer may be a metal oxide other than silicon oxide, such as aluminum oxide, aluminum hydroxide or zirconium oxide.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com