Ключевые слова:
Pipes, Pipe fittings, Pipe couplings, Spheroidal-graphite cast-iron, Cast-iron pipelines, Sewers, Manholes, Sewerage, Drainpipes, Drainage, Dimensions, Size, Colour codes, Temperature, Pressure, Performance, Mechanical properties of materials, Marking, Coatings, Dimensional measurement, Tensile testing, Bend testing, Pressure testing, Chemical-resistance tests, Wear tests, Effluents (sewage), Type testing, Conformity, Spigot-and-socket joints, Design calculations