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Cylindrical gear checking machines. Types. Basic parameters. Accuracy limits

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General-purpose electrically-welded spiral seam steel pipes. Specifications

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Hard-facing materials. Methods of nickel determination

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The best available techniques. Methodical recommendations for determining technological indicators

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Mechanical hand and pocket watches. General specifications

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Rehabilitation of disabled persons. Evaluation of the effectiveness of the system of rehabilitation of disabled persons and habilitation of disabled children

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