SilicateChina Calcined α -Alumina (CAS No. 1344-28-1) Used in Ceramics, Refractory Materials, Grinding and Polishing, Petrochemical Industries, Find details about China Aluminum Oxide Refractories, Alumina High Thermal Conductivity from Calcined α -Alumina (CAS No. 1344-28-1) Used in Ceramics, Refractory Materials, Grinding and Polishing, Petrochemical Industries