| 1. | Mortar coater of prestressed concrete pipes for water
预应力混凝土输水管辊射机 |
| 2. | Core type prestressed concrete pipe for water
预应力混凝土输水管管芯缠丝工艺 |
| 3. | Test methods of concrete pipes for water transmission
混凝土输水管试验方法 |
| 4. | Asbestos - cement pressure pipes and joints for water
石棉水泥输水管及其接头 |
| 5. | Asphalt protective coatings for steel water pipe
钢输水管的沥青保护涂层 |
| 6. | Fung kong tsuen road water - main drainage works underway
凤降村路-输水管及渠务工程进行中 |
| 7. | Inspection methods of prestressed concrete
预应力混凝土输水管检验方法 |
| 8. | Core type prestressed concrete pipe
预应力混凝土输水管管芯缠丝工艺 |
| 9. | Water ; indicating labels , distribution pipes and pipelines
供水.指示牌.地区配水管和远程输水管 |
| 10. | Asbestos - cement pressure pipes and joints
石棉水泥输水管及其接头 |
