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Стандарты Министерства химической промышленности редко обновляются; hg20570 — это стандарт 1995 года

2016-07-20View Original

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Заметили ли вы, какие стандарты могут заменить 20570?
Reply #22016-10-27
Тот же вопрос: прошло более 20 лет, почему стандарты до сих пор не обновлены?

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