Detailed Product Description This product is widely used as inner lining for the drying columns,absorbing columns in melting plants, chemical plants, petroleumindustry, chemical fertilization plants and sulfur acid plants, etc, or used as inner lining brick for anticorrosive pools and channels. Main technical data:ItemUnitIndexTest standardBulk densitykg/m3 2.25-2.4 ZBG94003-86 Water absorption % ...