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ГОСТ 28538-90

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ГОСТ 28576-90

ГОСТ 28572-90

Пек каменноугольный. Диэлектрический метод определения массовой доли веществ, нерастворимых в хинолине
Coal-pitch. Dielectric method for the determination of mass fraction of substances insoluble in quinoline

SKU: 3913 Category: GOST - State standards

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