Hunan Jiashunhua New Material Co., Ltd., its main products mullite ceramic casting sand, is located in Jingzhou County, Huaihua City, Hunan Province, China. Mullite ceramic casting sand has the characteristics of high synthetic mullite phase, stable phase structure, high refractoriness, low thermal expansion rate, high temperature sintering  point, excellent thermophysical and chemical stability, and high sphericity, smooth surface and high quality crack resistance, making it a new type of casting sands that can enable the casting industry to improve the accuracy of castings, improve the surface quality of castings, reduce casting defects, and increase the yield of castings. The low resin consumption, low gas generation, easy sand cleaning, and high recycling rate,  brought by it, allow the foundry industry to improve the production environment, reduce labor intensity, save costs and resources, and meet the industry requirements and direction of Green Casting.