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GOST R 59876-2021
Information technology for learning, education and training. Information model for competency. Part 2. Proficiency level information model
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€10
GOST 35074-2024
Petroleum products. Calculation of cetane index of middle-distillate fuels by the four variable equation
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€25
GOST 1652.12-77
Copper-zinc alloys. Methods for the determination of silicon
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€10