These chrome free bricks include dolomite bricks, magnesia spinel bricks and magnesia calcium zirconate bricks.
研究表明，用白云石砖、尖晶石砖、镁锆钙砖代替镁铬砖，符合碱性砖无铬化的发展趋势。
Is the production of cement rotary kiln thermal belt with alumina magnesia spinel bricks, ladle lining brick, ladle castable refractory materials such as the ideal raw material.
是生产水泥回转窑高温带用铝镁尖晶石砖、钢包衬砖、钢包浇注料等耐火材料的理想原料。
Available standard MA-spinel bricks differ mainly in the type of magnesia and in the amount and type of their alumina carrier (sintered and fused MA-spinel, calc. alumina, white fused alumina, etc. )
目前各种标准的镁铝尖晶石砖主要在氧化镁的数量、种类和它们铝载体的种类（烧结和电熔镁尖晶石、钙，氧化铝，白电熔等）方面有很大的不同。
Compared with the heat-proof corundum bricks, the heat-proof bricks prepared by employing lightweight magnesia-alumina spinel brick raw material have lower heat conductivity.
与隔热刚玉砖比较，用轻质镁铝尖晶石原料制备的隔热砖的热导率更低。
Compared with the heat-proof corundum bricks, the heat-proof bricks prepared by employing lightweight magnesia-alumina spinel brick raw material have lower heat conductivity.
与隔热刚玉砖比较，用轻质镁铝尖晶石原料制备的隔热砖的热导率更低。
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