Ключевые слова:
Dimensions, Pressure, Size, Performance, Test methods, Dimensional tolerances, Thermosetting polymers, Polyesters, Pipe fittings, Plastic pipelines, Sewers, Pipe couplings, Drainage, Unsaturated polyesters, Sewerage, Mechanical properties of materials, Glass fibres, Pipes, Plastics, Reinforced materials, Pipework systems, Water supply and waste systems (buildings)