| 1. | Specification for reinforced plastic mortar sewer pipe 增强塑料砂浆排污水管规范 |
| 2. | Standard specification for ductile iron gravity sewer pipe 球墨铸铁污水管标准规范 |
| 3. | Concrete and reinforced concrete drainage and sewer pipes 混凝土和钢筋混凝土排水管 |
| 4. | Sealed board pipe stopper of sewer pipe for the air test 排水管道闭气检验用板式密封管堵 |
| 5. | Concrete and reinforced concrete sewer pipes 混凝土和钢筋混凝土排水管 |
| 6. | Standard for the air test method of concrete sewer pipe work 混凝土排水管道工程闭气检验标准 |
| 7. | Specification for cured - in - place thermosetting resin sewer pipe 现场固化的热固性树脂污水管规范 |
| 8. | Tell me where this sewer pipe leads 告诉我这些下水管道通向哪里 |
| 9. | Standard specification for asbestos - cement nonpressure sewer pipe 石棉水泥无压污水管道的标准规范 |
| 10. | Abs specification for acrylonitrile - butadiene - styrene sewer pipe and fittings 丙烯腈-丁二烯-苯乙烯共聚物 |