... bricks characteristics and advantages: 1.Lower content of iron, alkaline and impurities, good high temperatu ... insulating bricks characteristics and advantages:1.Lower content of iron, alkaline and impurities, good high ... ,which meets the requirement of construction. Index /brand2326283032Classification temperature °C12601430154016501760Bulk density kg/m358080089010301250Modulus of rupture MPa0.91.51 ...