Weifang Zhongyun Science and Research Co., Ltd. is a holding subsidiary company of Zhongyun Group. Its current main scope of business is various kinds of large, medium and small sized PE/PVC/PP double wall corrugated pipe equipment with horizontal water cooling system for high speed running. It can provide customers with solutions and equipments used for the production of double wall corrugated pipes with a diameter from 50mm to 3200mm. Zhongyun Group is a large enterprise group with more than forty years' history, and currently involved in the development and manufacture of both plastic pipe processing equipments and large sized wind generators, precision casting, investments, etc. Thereamong, in the field of plastic pipe processing equipments, Zhongyun Group, by virtue of advanced technical solutions and superior quality of products, has won an extremely high reputation and extensive supports in plastic machinery industry of China. Zhongyun Group is the one and only holder of "Chinese well-known trademark" at present in plastic machinery industry of China.

 Depending on the rich experience and powerful strength of Zhongyun Group in the sphere of plastic pipe processing equipment, Zhongyun Science and Research Co., Ltd. has been taking the lead in making breakthroughs continuously on both production technology and equipment for the double wall corrugated plastic pipes through constantly investing in the research and development of new products and technical innovations. Today, Zhongyun Group has been the principal supplier of double wall corrugated pipe equipment both in China and all over the world