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Global navigation satellite system. Parameters of radionavigation field. Technical requirements and test methods
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Arc welding. Welded joints in pipelines of copper and copper-nickel alloy. Main types, design elements and dimensions
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Electricity metering equipment (AC). Particular requirements. Part 52. Symbols
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Rubber- or plastics-coated fabrics. Determination of tear resistance. Part 2. Ballistic pendulum method
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Professional cleaning services – cleaning services. Сleaning in general education organizations. General requirements and safety requirements
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