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What is the main composition of Xincheng cement?

Calcium carbonate, silica, alumina and iron oxide. Xincheng cement is characterized by powdery hydraulic inorganic cementing material, and its main components are calcium carbonate, silica, alumina and iron oxide. Chengkou Xincheng Cement Co., Ltd. was originally a local state-owned enterprise under the county economic commission, and was established as a private cement production enterprise after the enterprise reform in 2005.