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Revers pipe fitting for thermal power-stations electric stations. Types and main parameters
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Methods of test for the determination of the flammability of solid electrical insulating materials when exposed to an igniting s
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Coupling and power selection capacitors for electric transmission lines. Specifications
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Reciprocating internal combustion engine driven alternating current generating sets. Part 6. Test methods
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Natural circulation stationary steam boilers less then 4 t/h. General requirements
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Electric lamps and starters. General requirements for export
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