After the industrial revolution in the 18th century, with the rise of construction, machinery, steel, transportation and other industries, inorganic non-metallic materials have developed rapidly, and electric porcelain, chemical ceramics, cermets, flat glass, chemical glass, optical glass have emerged. Refractory materials for open hearth furnaces and converters, as well as cements with excellent properties such as fast hardening and early strength. At the same time, the development of abrasive materials, carbon and graphite products, cast stone and so on.
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