About: http://webisa.webdatacommons.org/440911652

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	The refractive index of the glass filler is adjusted to match that of the epoxy resin by using multi-component glasses that are prepared by blending oxides such as Na2O, Al2O3, CaO, BaO, ZnO, TiO2, and B2O3.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es