| Descriptors | Spheroidal-graphite cast-iron, Cast-iron, Cast-iron pipelines, Gas pipelines, Gas pipes, Pipes, Pipe fittings, Dimensions, Size, Flanged fittings, Flanges, Pipe connections, Pipe couplings, Design, Marking, Hardness, Elongation, Dimensional tolerances, Coatings, Finishes, Pipe coatings, Sampling methods, Tensile testing, Tensile strength, Mechanical testing, Bend testing, Leak tests, Conformity |
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