Zhengzhou Xinhai Machinery Manufacturing Co., Ltd. is specialized in grinding attachment: ball mills, crushing equipment: jaw crusher, hammer crusher and sand-making production equipment and autoclaved aerated concrete(AAC).And integrates development, production, sales for the integration of large and medium-sized modernized enterprise. The Company is located in China's largest traffic hub-Zhengzhou City, Henan Province. The company, after three decades years of development, and owns two ...