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| 83327 | Water pipelines and related works, local, corrosion control programmes for | |
| 83327 | Water pipelines and related works, local, electrical engineering design services for the construction of | |
| 83327 | Water pipelines and related works, local, geotechnical engineering services for the construction of | |
| 83327 | Water pipelines and related works, local, groundwater assessment for the construction of | |
| 83327 | Water pipelines and related works, local, integrated engineering services for the construction of | |
| 83327 | Water pipelines and related works, local, mechanical engineering design services for the construction of | |
| 83327 | Water pipelines and related works, local, other engineering services for the construction of | |
| 83327 | Water pipelines and related works, local, specialty engineering design services for the construction of | |
| 83327 | Water pipelines and related works, local, structural engineering design services for the construction of | |
| 83327 | Water pipelines and related works, local, structural failure investigation of | |
| 83327 | Water pipelines and related works, local, technical inspection services during the construction of | |
| 83327 | Water pipelines and related works, local, undertaking contamination studies of | |
| 83327 | Water pipelines, long-distance, corrosion control programmes for | |
| 83327 | Water pipelines, long-distance, electrical engineering design services for the construction of | |
| 83327 | Water pipelines, long-distance, geotechnical engineering services for the construction of | |
| 83327 | Water pipelines, long-distance, groundwater assessment for the construction of | |
| 83327 | Water pipelines, long-distance, integrated engineering services for the construction of | |
| 83327 | Water pipelines, long-distance, mechanical engineering design services for the construction of | |
| 83327 | Water pipelines, long-distance, other engineering services for the construction of | |
| 83327 | Water pipelines, long-distance, specialty engineering design services for the construction of | |
| 83327 | Water pipelines, long-distance, structural engineering design services for the construction of | |
| 83327 | Water pipelines, long-distance, structural failure investigation of | |
| 83327 | Water pipelines, long-distance, technical inspection services during the construction of | |
| 83327 | Water pipelines, long-distance, undertaking contamination studies of | |
| 83327 | Water, sewage and drainage projects, corrosion control programmes for | |
| 83327 | Water, sewage and drainage projects, electrical engineering design services for | |
| 83327 | Water, sewage and drainage projects, geotechnical engineering services for | |
| 83327 | Water, sewage and drainage projects, groundwater assessment for | |
| 83327 | Water, sewage and drainage projects, integrated engineering services for | |
| 83327 | Water, sewage and drainage projects, mechanical engineering design services for | |
| 83327 | Water, sewage and drainage projects, other engineering services for | |
| 83327 | Water, sewage and drainage projects, specialty engineering design services for | |
| 83327 | Water, sewage and drainage projects, structural engineering design services for | |
| 83327 | Water, sewage and drainage projects, structural failure investigation for | |
| 83327 | Water, sewage and drainage projects, structural failure investigation of | |
| 83327 | Water, sewage and drainage projects, technical inspection services during the execution of | |
| 83327 | Water, sewage and drainage projects, undertaking contamination studies for | |
| 83327 | Waterworks, corrosion control programmes for | |
| 83327 | Waterworks, electrical engineering design services for the construction of | |
| 83327 | Waterworks, geotechnical engineering services for the construction of | |