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Petroleum and natural gas industry. Subsea production systems. Protection structures
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Auxiliary compounds for textiles. Preparation OC-20. Specifications
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Linen, semilinen and cotton textiles. Methods for the determination of cellulose solution viscosity
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Rehabilitation and habilitation of hearing impaired persons. Types of communication
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State system for ensuring the uniformity of measurements. Testing equipment for determination of resistance to clogging for respiratory protective devices particle filters. Verification method
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