| 1. | Closing appliance for exterior ventilation inlet or outlet
外部通风进口或出口的关闭装置 |
| 2. | Closing appliance for exterior ventilation outlet
外部通风出口关闭装置 |
| 3. | Closing appliance for exterior ventilation inlet
外部通风进口关闭装置 |
| 4. | L automatic shut off power saving device
电源自动节电关闭装置 |
| 5. | Automatic shut off power saving device
电源自动节电关闭装置 |
| 6. | Application of section locking device in baishan pumped - storage power station
分段关闭装置在白山抽水蓄能电站的应用 |
| 7. | Two stages closing device
可设置两段关闭装置 |
| 8. | Automatic closing device
自动关闭装置 |
| 9. | Building hardware - controlled door closing devices - requirements and test methods
建筑五金.控制门关闭装置.要求和试验方法 |
| 10. | Self closing device
自动关闭装置 |
