1550 - demand a variety of sizes of the long-term use without cracking, carrying a large amount of just ..

Is corundum mullite based refractory products crystal phase. It has a high compressive strength at room temperature (up to 340MPa). Load softening start temperature (greater than 1700 ℃). Good chemical stability of the acidic or basic slag, metal and glass fluid, etc. have a strong resistance. It can be widely used in various high-temperature kiln firing products