所需规格如下：
煅烧铝矾土（低碱）
Al2O3 (Alumina) 86.0 min
Fe2O3 (Iron Oxide) 2.0 max
K2O+Na2O(Alkaline) 0.3 max
TiO2 (Titanium) 4.0 max
Moisture 1.0 max
Bulk Specific Gravity(BSG) 1.0 max
Size : 0-30 mm. = 90% min
高岭土
Al2O3 (Alumina) 44.0 min
Fe2O3 (Iron Oxide) 1.0 max
TiO2 (Titanium Oxide) 2.5 max
K2O (Potassium Oxide) 0.3 max
Sodium Oxide (Na2O) 0.05 max
Moisture 1.0 max
Bulk Specific Gravity(BSG) 2.45 min
Size : 70 mesh - 0.212 mm = 90% min