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Normal magnesia brick is made of Alumina-Magnesia spinel, periclase, It has higher temperature strength, good thermal shock stability, strong resistance to basic slag. 普通鎂鋁以鎂鋁尖晶石和方鎂石爲主要晶相，具有較高的高溫強度和較好的熱穩定性，抗堿性爐渣侵蝕。