Давление в трубах. Проверка прочности труб разных диаметров
Давление в трубах. Проверка прочности труб разных диаметров. В съемках использованы полипропиленовые трубы FORA -
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![За что Зеленский должен сидеть в тюрьме | Why Zelensky should be in prison [ENG SUB]](https://sun9-26.userapi.com/zgP0MU0tadSXzim_MJYmR8QG2NsdbBAlbpSQ2Q/hT-FuYPOnps.jpg)
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