| 1. | Supply and installation of radio electronics equipment
供应及安装无线电设备 |
| 2. | Supply and installation of audio electronics equipment
供应及安装音响设备 |
| 3. | Supply and installation of video electronics equipment
供应及安装视像设备 |
| 4. | Supply and installation of bearings for highway structures
供应及安装公路建筑物的轴承 |
| 5. | Supply and installation of water treatment plant public works category
供应及装置滤水器 |
| 6. | Supply and installation of water treatment plant
供应及装置滤水器 |
| 7. | Supply and installation of electronics timing and display systems
供应及安装电子计时及显示系统 |
| 8. | Supply and installation of expansion joints for highway structures
供应及安装公路建筑物的伸缩接缝 |
| 9. | Pump supply and installation of pumpsets and associated pipework
供应及装置抽水系统及相连的水管工程 |
| 10. | Supply and installation of glass or fibre reinforced plastic units
玻璃或玻璃纤维强化塑胶构件的供应及装置 |
