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Additional information
State Technical University, St. Petersburg. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 10, pp. 2–4, October, 1992.
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Gyulikhandanov, E.L., Khaidorov, A.D. & Khen, L.T. Combined carburizing cycles for 20KhGNR steel. Met Sci Heat Treat 34, 603–606 (1992). https://doi.org/10.1007/BF00776896
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DOI: https://doi.org/10.1007/BF00776896