Zhangqiu Yulong Machinery Co., Ltd. is an enterprise of research and development, manufacturing, training, international trade as a whole. Main products: flat die pellet mill, ring die pellet mill, rollers pellet mill etc three main series pelleting and briquetting equipment. Cutting, crushing etc two series; Air-flow dryer, drum dryer, cooler etc two series and other screener, conveyor etc other products. All products have passed technical appraisal and recognition of the relevant state departments and enjoy very good reputation in the market. With the help of China Environment Federation, Shandong Agricultural University, Shandong Agricultural Mechanization Research Institute, introduced German technology in 2001, by virtue of advanced technology and scientific management, research and development of pelletizing stalk, wood and briquetting stalk etc new energy equipment, especially the "taper-shaped roller" Flat Die Pellet briquetting machine due to the unique structure, big pressure, low energy consumption, high efficiency, it has gotten the national patent, and quickly cover the national market.