GOST

Rolling bearings. Steel balls. Specifications

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Aircraft wood. Inspection rules and control methods

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Gate valves Pnom 25 MPa (250 kgf/sq cm). General specifications

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Technical liquid ammonia. Specifications

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System of standards on information, librarianship and publishing. The research report. Structure and rules of presentation

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Illuminants for colour measurements. Types. Technical requirements. Marking

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