Kai Yuan Mining Machinery Manufacturing Co., Ltd., has high capability of research and development. Our main products are doublefunction pestle knocks crushers of the PCS series, screening machines, feeder, jaw crushers, impact crushers and spline shafts, etc. They are products of highly efficient, energy-conservation, environmental-protection. They are the substitute products of the crushers and screening machines of the old style. The product sales network covers the whole country and they are even sold in the markets of other countries, enjoying high reputation.