硅酸铝耐火材料
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alumina silica refractory; alumina silicate refractory; alumino-silicate refractory
alumina silica refractory
alumina silica refractroy; alumina silicate refractory; alumino-silicate refractory
пословный:
| 硅酸铝 | 耐火材料 | ||
| 硅酸铝 | 耐火材料 | ||