EBT AND EBT HOLE SAND ANALYSIS TABLOSU MgO (%) 87-97.5 SiO2 (%) 3.5-1.0 CaO (%) 2.0-3.0 Yoğunluk (g/cm3) 2.85-3.20 0.2MPa under load Refractory (°C) 1540-1700