| http://www.w3.org/ns/prov#value | - Reflective particles having a metallic glint and of any shape, may also be selected from particles of synthetic substrate at least partially coated with at least one layer of at least one metal oxide selected, for example, from oxides of titanium, in particular TiO2, of iron, in particular Fe 2 ?? 3 , of tin, or of chromium, barium sulfate, and the following materials: MgF 2 ; CrF 3 ; ZnS; ZnSe; S
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