Russian standards PDF
Alloyed and high-alloyed steels. Methods for determination of tantalum
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Metals and alloys. Brinell hardness test by static action portable hardness meters
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Unified system of instrument making standards. Types for means of measuring and automation. Inscription and main dimensions
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Unified system for design documentation. Registration and storage rules
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Unified system for technological documentation on forms and rules of making documents on technical control
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