Ningbo Haihong Hydraulics Co., Ltd specializes in researching, developing and manufacturing screw-in cartridge valves and mini hydraulic system combined with them and its main products include relief valves, solenoid valves, direction control valves, flow control valves, load control valves.The company has passed ISO9001 quality system authentication.

relief valves, solenoid valves, direction control valves, flow control valves, load control valves.