Ключевые слова:
Pipework systems|Inspection|Underground|Steam|Depth|Thermal insulation|Tenders|Corrosion|Design|Maintenance|Pipes|Commissioning|Prefabricated parts|Sealing materials|Pipelines|Installation|Excavating|Contracts|Pipe supports|Insulation pipes|Thermal insulating materials|Water|Steels|Pipe laying|Valves|Plastics|Manholes|Repair