Zhengzhou Longding Heavy Industry Machinery Co., Ltd.is the leading manufacture of crushing and screening machine in China.We are subordinate to Zhengzhou Institute of MultipurposeUtilization of Mineral Rseources CAGS and China National Engineering Research Center for utilization of Industrial Minerals. So we are famous for senior experts and experienced workers. The main products of our company are jaw crushers, hammer crushers, impact crushers, ball mills, rod mills, vibrating screens, sand makers, sand washers, magnetic separators, SF flotation machines, conveyors, elevators and spiral classifiers. The quality of our products all reaches ISO9001 standard. With the advanced technology, we are the leading manufacturer of mining machinery in China.