The properties, production technology and classification of single-piece of fire-proof glass are described in this paper.
介绍了防火玻璃的性能，以及国内防火玻璃的生产技术和分类。
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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