| 1. | Fittings of coated steel pipes for water service
输水用涂层钢管的异型管件 |
| 2. | 1 . no . 2 raw water transmission main of zhitan
1 .直潭第二原水输水干线 |
| 3. | Air and water rubber hose coupler for salvage
救捞用输气输水胶管接头 |
| 4. | The low - pressure pipeline and the field irrigation technique
低压管道输水与田闻优化灌溉技术 |
| 5. | Guides of laying for asbestos - cement water and gas pipelines
石棉水泥输水输煤气管道铺设指南 |
| 6. | This system of underground tunnels and pipes was completed in 1975
全部输水隧道于1975年完成。 |
| 7. | Water delivery and injection line : cleanup scale and sediment
输水、注水管线：清除水垢、沉积物。 |
| 8. | Application of semi - prestressed grouting in water conveyance tunnel
半预应力灌浆在输水隧洞中的应用 |
| 9. | Plastice hoses , textile . reinforced , for general . purpose water applications
普通输水用织物增强塑料软管 |
| 10. | Water delivery t type rubber sealing ring
输水t型橡胶密封圈 |
