The popular ceramics industry expanded toward the middle of the 19th century.

大众陶瓷业在19世纪中叶得到了发展。

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The business involved in all kinds of rare earth calcination, ceramics, glass, metallurgy, tile, refractory, petroleum proppant, expanded perlite, medical chemical, ect.

业务涉及各类稀土灼烧、陶瓷、玻璃、冶金、砖瓦、耐火材料、石油支撑剂、膨胀珍珠岩、医疗化工等多个行业。

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The ceramics they were using expanded four times as fast as silicon when heated.

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