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State system for ensuring the uniformity of measurements. State verification schedule for measuring instruments of electrical power and energy in the frequency range from 1 to 2500 Hz
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Test code for machine tools. Part 4. Circular tests for numerically machine tools
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Tourism and related services. Services of accommodation facilities «All inclusive» and «Ultra all inclusive». General requirements
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Gauges for trapezoidal thread connections for casing pipes with couplings. Types and basic dimensions
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