Magnesium bricks are alkaline refractory materials made from sintered magnesia or fused magnesia as raw materials, which are pressmolded and sintered.. Appliions of Magnesium Bricks Magnesium bricks are mainly used in openhearth furnaces, electric furnaces, and mixed iron furnaces. 10. Corundum Bricks Corundum brick refers to refractory with alumina content ≥90% and corundum as .
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