Product Name: High Precision Factory Price High Alumina Refractory Brick Model NO.: SK35 SK36 SK37 SK38 SK40 Material: Alumina Block Shape: Brick Type: Refractory Material Feature: Long Time Materials Refractoriness (?): 1770< Refractoriness< 2000 Sio2: 15%~45% Al2O3: 45%~80% Size: Customizable Certifiacte: ISO9001, Ce, etc Refractoriness: Sk35-40 Apparent Porosity: 22-23% Bulk Density: 2.25-2.65g/cm3 Refractoriness Under Load@0.2MPa: 1380-1530