... brick) 高纯刚玉砖 (High pure corundum brick) 刚玉莫来石砖 (Mullte corundum brick) 氧化铝空心球砖 (Light corundum brick) AI2O3 %≥ 99 99 70~80 75~95 SiO2 % ≤0.5 ≤0.5 18~8 23~3 Fe2O3 %≤ 0.1 0.5 0.2 0.3 体积密度 Bulk Density g/cm3 ≥...
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light weight corundum brick 为氧化铝隔热砖
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