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Safety of power transformers, power supplies, reactors and similar products. Part 2-20. Particular requirements and tests for small reactors
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Mixed feeds-concentrates for sheeps and goats. General specifications
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Basic norms of interchangeability. Geometrical features. General terms and definitions
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Independent gas-fired space heaters without connection to the chimney with nominal heat input not exceeding 6 kW
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Refractory products. Method of permeability to gas coefficient determination
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