![High Strength IM 23 Mullite Brick Good Thermal Shock ...](/e69yszg/597.jpg)
High Strength IM 23 Mullite Brick Good Thermal Shock ...
IM 23 Mullite Insulation Brick with High Strength for Gas Furnace . Description: High temperature mullite insulation bricks for sale are made from good quality and superior raw materials, with strictly classified fillings according to their grades. These fillings can form a uniform pore structure after burnt during the process of manufacture.