Huaian Shengjie Hydraulic Machinery Co., Ltd., established in 1990, is a professional spool directional control valve manufacturer in China. We specialized in producing directional flow control valve, directional control hydraulic valve, multiple control spool valve, high pressure multi-port valve and etc. Our products are with outstanding performance, convenient operation, and our products are widely applied to agriculture, construction, petroleum, fishery, mining and other industries. In