Carbon, alloyed and high-alloyed steels. Methods for determination of nitrogen
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Alloyed and highalloyed steels. Methods for determination of niobium
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A. c. circuit-breakers for voltages from 110 to 750 kV. Switching of overhead lines on no-load. Technical requirements and test methods
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Cylindrical helical compression (tension) springs made of round steel. Designation of parameters, methods for determination of dimensions
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