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