Ключевые слова:
Plastics, Pipework systems, Pipes, Plastic pipelines, Polyethylene, Water, Water supply, Water supply (buildings), Water supply and waste systems (building, Sewerage, Drainage, Sewers, Drainpipes, Potable water, Pressure, Pressure pipes, Colour, Size, Dimensions, Physical properties of materials, Mechanical properties of materials, Performance, Marking, Testing, Coatings, Laminates