... 耐火衬砖：refractory lining brick 耐火衬套：fire-proof casting 耐火舱：fire-proof box ...
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My factory productions quartz sand mainly uses in the glass, fire-proof material, smelting ferrosilicon, flux, ceramics, abrasive substance, casting.
我厂生产的石英砂主要用于玻璃，耐火材料，冶炼硅铁，冶金熔剂。
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