Zhengzhou Zidong Heavy Industry Machinery Equipment Co., Ltd., or Zidong Heavy Industry for short, is a professional manufacturer specializing in the design, production, installation, and commissioning of large-scale machinery and equipment. The company's main products include complete sets of sand and gravel production lines, mineral processing lines, drying and calcining lines, and auxiliary equipment such as screening and conveying systems. Since its establishment, the company has over twenty years of production history. Adhering to the principle of "survival through quality and development through reputation," the company strives for excellence in technology and has cultivated a large number of experienced and highly skilled professionals over the long term. It is particularly strong in the design, manufacturing, installation, and commissioning of rotary kilns, and provides comprehensive after-sales service. This effectively solves the key problem faced by users after commissioning: insufficient technical expertise, numerous difficulties, and lack of professional guidance, hindering the rapid commencement of normal production and the creation of quick profits.