Model Number: GAL-75 Al2O37%5 (general grade) Brand Name: GUNAI Key Specifications/Special Features: Refractoriness of calcined bauxite is about 1780°C (3236°F).We choose the least impurities raw ore from Shanxi Province, which is the biggest bauxite producing area in China. We produce calcined bauxite in different kinds of kilns, the Al2O3 content and bulk density of our product in down-draft kiln is higher than average standard.Advanced technology: we using the most advanced crushing equipment: Bamako to break out small particles which can extend the life of product quality. GradeAL20₃(%)Fe₂O₃(%) SiO₂(%) TiO₂(%) CaO+MgO(%) K₂O+Na₂O(%) B.D.(g/com³) Water Absorption(%) Moisture(%) GAL-75 ≥75 ≤2.4 ≤7.0 ≤4.0 ≤0.5 ≤0.5 ≥2.8 ≤5 ≤0.3