The Chamotte is an important refractory raw material, and it is extensively applied to the industry of metallurgy, ceramics etc.
焦宝石是重要的耐火原料，广泛用于冶金、建材、陶瓷等行业。
The Chamotte is an important refractory raw material, and it is extensively applied to the industry of metallurgy, ceramics etc.
焦宝石是重要的耐火原料，广泛用于冶金、建材、陶瓷等行业。
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