Ключевые слова:
Marking, Water supply and waste systems (buildings), Pipes, Defects, Test methods, Designations, Quality control, Drainage, Sampling methods, Gas pipes, Water supply (buildings), Water, Heating equipment, Seamless pipes, Dimensional tolerances, Copper, Mechanical properties of materials, Copper alloys, Hot-water supply systems, Conformity, Pipework systems, Sanitary appliances, Waste-water drainage, Fluid equipment, Dimensions, Cold-water supply systems, Water heaters