Russian standards PDF
Air-cooled apparatus. General technical requirements
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All-rolled wheels and tyres for railway rolling stock. Nondestructive inspection methods
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Nickel. Cobalt. Methods for determination of nickel in nickel
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Nickel. Cobalt. Methods for determination of nickel in cobalt
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Brown coals, hard coals and anthracites. General technical requirements
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Brown coals, hard coals and anthracites. Classification according to genetic and technological parameters
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