Cov khoom tseem ceeb ntawm cov iav xim yog purified quartz xuab zeb thiab potassium feldspar, albite, lead oxide (cov ntsiab lus ntawm iav), ntsev (potassium nitrate: KNO3; txias), alkali hlau, alkaline ntiaj teb hlau (magnesium chloride: MgCl, melting pab. , nce durability), aluminium oxid...
Nyeem ntxiv