氧化铝空心球

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The alumina bubble produced by our company is a hollow spherulitic heat-insulating meterial, which is made by electrofused method.It is noted for its light-weight,heat-resistance,close pore.It is an ideal filler for high-temperatuerfurnaces and excellent aggregate of light weight castable refractory.it is also and ideal heat-insulating and energy-saving refractory.