| 1. | Mushroom outlet closing and opening by hand to be inspected
菌形风帽手动启闭试验。 |
| 2. | Small operation torque , easy opening and closing
操作扭矩较小,启闭容易。 |
| 3. | Headstock gears with screw stem . types and basic parameters
螺杆式启闭机.型式和基本参数 |
| 4. | Specification for headstock gears with screw stem
螺杆式启闭机.技术条件 |
| 5. | Small and middle size hydraulic headstock gears . basic parameters
中小型液压闸门启闭机.基本参数 |
| 6. | Hydropower and water resources specification for design of gate hoist
水电水利工程启闭机设计规范 |
| 7. | Serial parameters of qp cable hoist
Qp型卷扬式启闭机系列参数 |
| 8. | Can be used for both on - off and throttling control of fluid flow
可用作流体流量的启闭和节流控制。 |
| 9. | Pvc curtain box of windows and doors
Pvc门窗帘吊挂启闭装置 |
| 10. | Stub acme thread on stem provides rapid open - close operation
阀杆上的短梯形螺纹适用于快速启闭操作。 |
