1. QHF oil source switch-over valve
2. JXB mechanical-hydraulic over-speed protection device
3. Uxj magnetic flap level gauge
4. SLX current indicator
5. Zlb Master Control Transmitter
6. DWG guide vane position switch
7. JTK memory adjustable level switch
8. ZKZ-2A/T Speed Monitoring Device
9. ZKZ-3A/T Tooth Disc Residual Pressure Speed Monitor
10. ZKZ-5 Dual PLC Redundant Speed Monitor TAG：