Ключевые слова:
Installation|Cast-iron|Corrosion protection|Pipe couplings|Pressure|Cutting|Spheroidal-graphite cast-iron|Pressure testing|Commissioning|Cast-iron pipelines|Pipes|Ratings|Grey cast-iron|Pipe fittings|Cleaning|Land|Hydraulic tests|Design|Safety measures|Visual inspection (testing)|Underground|Test pressure|Pipelines