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Check valves. Basic parameters

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Organic fertilizers. Effluent. Specifications

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Earth-moving machinery. Loaders. Terminology and commercial specifications

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Lead-antimony alloys. Methods for the determination of bismuth

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Bristle scalded. Specification

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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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