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Stationary steam and hot-water boilers, heat recovery steam generators. Requirements for approval of welding procedures for metallic materials
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Renewable power engineering. Tidal power plants. Part 2. Construction of tidal power plants. Safety requirements. General
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Lamp-holders for tubular fluorescent lamps and starter-holders. General specifications
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Heating cables with a rated voltage of 300/500 V for comfort heating and prevention of ice formation
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Semiconductor silicon, raw materials for its production and quartz. Methods of boron determination
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