Рижский Ордена Трудового Красного Знамени Политехнический Институт
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C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
C03C8/08—Frit compositions, i.e. in a powdered or comminuted form containing phosphorus