Russian standards PDF
GOST 21563-93
Hot-water boilers. Main parameters and technical requirements
Document status: Active
€10
GOST 21639.12-87
Fluxes for electroslag remelting. Methods for determination of manganous oxide
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€10
GOST 21997-76
High-tensile steel flattened strip. Specifications
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€10
GOST 22012-82
Man-vade noise from overhead power lines and electric substations. Norms and measuring methods
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€10