... series of silica bricks and clay bricks for coke oven; 2. High alumina bricks, silica bricks and clay bricks for blast furnace ... and hot stove; 3. Clay bricks, low porosity bricks, pouring forming, ... 7. All kinds of insulation materials, zircon bricks, sinter zircon corundum bricks, ramming mass, varied casting materials, zirconium ...