Russian standards PDF
GOST R 57700.5-2017
Numerical modeling of physical processes. Terms and definitions in the field of mechanics for flows in porous medium
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€10
GOST R 57814-2017
Testing fresh concrete. Part 7. Air content. Pressure methods
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€10
GOST R 57945-2017
System technology software development and production of statement on space technology. Terms and definitions
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€10