... refractory castable ItemIndexCC-45CC-60CC-70CC-60GCC-65GAl2O3 content, % ≥4560706065Bulk density, g/cm3 ≥2.302.352.502.382.40Cold crushingstrength, Mpa ... -90Al2O3 content, % ≥5060708090CaO content, % ≤2.52.22.02.01.8Bulk density, g/cm3 ≥2.352.452.502.602.95Cold crushingstrength, Mpa ... -1.0IC-1.2IC-1.35IC-1.5Al2O3 content, % ≥253540424550Bulk density, g/cm3 ≥0.60.81.01.21.351.5Cold crushingstrength ...