| 1. | Specification for glass fiber - reinforced polyester manholes
玻璃纤维增强聚酯检查孔规范 |
| 2. | Discussion on coalmine shaft pilot hole related data processing
煤矿井筒检查孔有关资料处理方法探讨 |
| 3. | Standard practice for sealing sewer manholes using chemical grouting
用化学灌浆密封污水道检查孔的标准规程 |
| 4. | Brake drum inspection hole cover
闸轮检查孔盖 |
| 5. | Access openings 450 450
450 450的检查孔 |
| 6. | Standard specification for glass - fiber - reinforced polyester manholes and wetwells
玻璃纤维增强聚酯检查孔和导水井的标准规范 |
| 7. | Standard specification for manhole cover assembly , bolted , raised , oiltight and watertight
防油防水隆起的螺栓连接检查孔盖组件标准规范 |
| 8. | Standard specification for manhole cover assembly bolted , semi - flush , oiltight and watertight
防油防水半嵌入螺栓连接检查孔盖组件标准规范 |
| 9. | Standard specification for manhole cover assembly , bolted , semi - flush , oiltight and watertight , hinged
防油防水半嵌入螺栓铰接检查孔盖组件 |
| 10. | Manhole blanking devices for pressure containing steam generator parts ; design , conditions of delivery
耐压蒸汽锅炉零件的检查孔装置.设计和交付条件 |
