The Group owns 24reverbrating kilnsfor caustic magnesia and 20 shaft kilins for dead bumed magnesia.The 110meters long, 4ultra high temperature tunnel kilns can heat the temperature up to 1850 and full capacity of the kilns is 80,000 tons of burned brick annually . The full capacity of refractory production in the Guoup is 500.000 tons annually,including the non sintered brick 40,000 .tons andmonolithics.hetechiques for manufacturing the finished magnesia products has been rank the first in China