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Nanotechnologies. Nanopowder calcium carbonate. Basic characteristics and methods for determination
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Low voltage systems. Cable systems. Patch cords. General requirements
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Gas-discharge devices. Hot cathode thyratrons. Parameters system
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Sintered metal materials, excluding hardmetals. Preparation of samples for chemical analysis for carbon content
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Roller thrust single direction needle bearings without rings. Specifications
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Environmental protection. Surface and underground water. Classification of water bodies
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