Zibo Jiafeng Mining and technology co., ltd was founded in Nov. 10th, 2008. With location in Zibo, Shandong Province, China, Jiafeng Mining is a professional enterprise which integrates manufacturing, processing and sales of flint clay into one unity. Because the company is located in the major origin of flint clay where have abundant flint clay resources, our flint clay product is characterized with high bulk density, low impurity content, stable physical and chemical property, high fire resistance temperature and so on features. It can be used as excellent raw material for high-ranking refractory material, refractory bricks, various kinds of ceramics, precision casting sand, ceramic fiber, fire-proof furnace lining, crucible, unshaped refractory etc. It