Polariscopes

Esmalte coloreado

El esmalte coloreado está hecho de cristales artificiales (que contienen un 24% de dióxido de plomo) de varios colores (los colores son producidos por varios

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plastic polariscope

Colored glaze

Colored glaze is made of artificial crystals (containing 24% lead dioxide) of various colors (the colors are produced by various metal elements) as raw materials

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