... -way solenoid valve :Compose of modular check valve,manifold block and gear pump.Voltage of modular check valve : AC220V, AC110V ,DC24V ,or ... hydraulic machine. 3,Be included the regulating valve,check valve,flow control valve and two-port & two-way solenoid valve. 4 ... control solenoid valves,high pressure gear pumps,pressure switches and modular check valve.Any requirement please feel free to send me ...