Design recommendations for strength calculation of the heating system pipelines.
Нормы расчета на прочность трубопроводов тепловых сетей. |
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MCHS Пояснительная запискаMChS clarification notice. Concerning … |
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GOST 17217–79Copper-nickel alloyed tubes. Grade mnzh5-1. … |
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GOST 3262-75Steel pipes for water and gas lines. … |