Russian standards PDF
Oversize washers. A and C accuracy classes. Technical specifications
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Reduced-size washers. A and C accuracy classes. Technical specifications
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Concrete and reinforced blocks for walls of buildings. General specifications
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Soils. Test method for determination of the strength and deformation modulus experiencing a point load
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Occupational safety standards system. Respiratory protective devices. Filtering half masks against aerosols with additional protection against vapors and gases. General technical requirements. Test methods. Marking
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