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| 83327 | Integrated engineering services for the construction of waterworks | |
| 83327 | Integrated engineering services for water, sewage and drainage projects | |
| 83327 | Irrigation works, corrosion control programmes for | |
| 83327 | Irrigation works, electrical engineering design services for the construction of | |
| 83327 | Irrigation works, geotechnical engineering services for the construction of | |
| 83327 | Irrigation works, groundwater assessment for the construction of | |
| 83327 | Irrigation works, integrated engineering services for the construction of | |
| 83327 | Irrigation works, mechanical engineering design services for the construction of | |
| 83327 | Irrigation works, other engineering services for the construction of | |
| 83327 | Irrigation works, specialty engineering design services for the construction of | |
| 83327 | Irrigation works, structural engineering design services for the construction of | |
| 83327 | Irrigation works, structural failure investigation of | |
| 83327 | Irrigation works, technical inspection services during the construction of | |
| 83327 | Irrigation works, undertaking contamination studies of | |
| 83327 | Local water pipelines and related works, corrosion control programmes for | |
| 83327 | Local water pipelines and related works, electrical engineering design services for the construction of | |
| 83327 | Local water pipelines and related works, geotechnical engineering services for the construction of | |
| 83327 | Local water pipelines and related works, groundwater assessment for the construction of | |
| 83327 | Local water pipelines and related works, integrated engineering services for the construction of | |
| 83327 | Local water pipelines and related works, mechanical engineering design services for the construction of | |
| 83327 | Local water pipelines and related works, other engineering services for the construction of | |
| 83327 | Local water pipelines and related works, specialty engineering design services for the construction of | |
| 83327 | Local water pipelines and related works, structural engineering design services for the construction of | |
| 83327 | Local water pipelines and related works, structural failure investigation of | |
| 83327 | Local water pipelines and related works, technical inspection services during the construction of | |
| 83327 | Local water pipelines and related works, undertaking contamination studies of | |
| 83327 | Long-distance water pipelines, corrosion control programmes for | |
| 83327 | Long-distance water pipelines, electrical engineering design services for the construction of | |
| 83327 | Long-distance water pipelines, geotechnical engineering services for the construction of | |
| 83327 | Long-distance water pipelines, groundwater assessment for the construction of | |
| 83327 | Long-distance water pipelines, integrated engineering services for the construction of | |
| 83327 | Long-distance water pipelines, mechanical engineering design services for the construction of | |
| 83327 | Long-distance water pipelines, other engineering services for the construction of | |
| 83327 | Long-distance water pipelines, specialty engineering design services for the construction of | |
| 83327 | Long-distance water pipelines, structural engineering design services for the construction of | |
| 83327 | Long-distance water pipelines, structural failure investigation of | |
| 83327 | Long-distance water pipelines, technical inspection services during the construction of | |
| 83327 | Long-distance water pipelines, undertaking contamination studies of | |
| 83327 | Mechanical engineering design services for the construction of dams used primarily for drinking water or desalination purposes | |
| 83327 | Mechanical engineering design services for the construction of dams used primarily for flood control or irrigation purposes | |