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
C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
C03C27/02—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing by fusing glass directly to metal
Verre de borate utilise comme fondant pour la realisation de perles destinees a l'analyse par fluorescence x, et procede de preparation du dit verre