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  • Profile picture of Оразгуль
    2 days, 8 hours ago

    Оразгуль

    Оразгуль Posted an update 2 days, 8 hours ago

    ГОСТ 34684-2020 Наноматериалы – нанотрубки углеродные одностенные
    https://rosgosts.ru/07/030/gost_34684-2020

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