Fe2O3: 2%
Porositas semu: 23%
Al2O3: 48%
Fe2O3: 2%
Bahan baku: Andalusite dari Afrika Selatan
Al2O3: ≥55%
Refractoriness: SK40
Bahan baku: Korundum
Al2O3: ≥70%
Fe2O3: ≤1.8%
Al2O3: ≥55%
Fe2O3: ≤2%
Refractoriness: ≥1790 ℃
ATURAN: ≥1480 ℃
Bahan baku: Bauksit, mullite
Al2O3: ≥55%
Al2O3: ≥55%
Fe2O3: ≤2%
Al2O3: ≥62
SIO2: ≤36
Refractoriness: SK36
Fe2O3: ≤2%
Al2O3 (%): ≥78
SiO2 (%): ≤20
Porositas yang Jelas: ≤24%
Kepadatan massal: ≥2.4g / cm3
Al2O3: ≥48%
SIO2: ≤45%
Al2O3: ≥60%
Fe2O3: ≤2%
Bahan baku: Mullite
AL2O3: ≥42%
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