Ningbo Longteng Bearings & Hydraulic Components Co., Ltd. was established in 2003. Our company is a manufacturer specialized in making screw-in hydraulic cartridge valves (including solenoid valves, pilot/hand-operated direction change valves, flow control valves and pressure control valves), hydraulic hand pumps, gear pumps and combination cartridge valves,manifold valves, which are widely applied in mobile machinery and manufacturing industry, especially in agricultural/meadow machines, ...