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| 莫来石耐火材料 | |||
| 富铝红柱石耐火材料; 莫来石质耐火材料; 多铝红柱石耐火材料 | |||
| mullite refractory: 4 phrases in 2 subjects |
| Metallurgy | 2 |
| Technology | 2 |
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