Beijing Hongji Shida Hydraulics Co., Ltd. is located ten kilometers south of Miyun County, a picturesque northeastern suburb of Beijing. It is a joint-stock company established in December 2002 by a number of like-minded hydraulic engineering and technical personnel and technicians with rich experience in assembly testing.Now the main production capacity is Shiro series hydraulic valves and proportional hydraulic valves, which are widely used in hydraulic systems such as mining, metallurgy, rubber and plastics, road construction, and machine tools.