Zhengzhou Yanxia Refractory Materials Co., Ltd. was established inOn June 5, 2019, the registered address was located in Group 6, Chuling Village, Chaohua Town, Xinmi City, Zhengzhou City, Henan Province, with Guo Junxia as the legal representative. The business scope includes the production and sales of refractory materials; Sales of bauxite, insulation materials, and castables。Bauxite（aluminous soil； Bauxite, also known as alumina or bauxite, is mainly composed of alumina, which is a hydrated alumina containing impurities and is a soil like mineral. White or grayish white, brownish yellow or light red due to iron content. Density 3.45g/cm3, hardness 1-3, opaque, brittle. Extremely difficult to melt. Insoluble in water, soluble in sulfuric acid and sodium hydroxide solutions. Mainly used for refining aluminum and making refractory materials.