Zhengyuan Powder R&D Co., Ltd. is located in industrial park of nanhui district of Shanghai city, is a national key scientific and technological enterprise. We integrate designing and developing with manufacturing, equipped with kinds of powder engineering facilities for superfine grinding and classifying of materials, as the Ultrafine Grinding Mechanical Engineering Research Center of Shandong City. Consisting of development center, trial center, fabrication center and inspection center and seven departments, Zhengyuan has the assets of RMB50,000,000, covering an area of 46,000 square meters. There are six high standard workshops used for production and trial. The topping trial plant is equipped with 52 types of equipment and a laboratory assembled with the Malvern Mastersizer 2000 and all kinds of advanced testing instruments, convenient for our customers' free industrial gr

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