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Translated from Khimicheskoe i Neftyanoe Mashinostroenie, No. 3, pp. 41–42, March, 1977.
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Perestoronin, I.K., Nesterenko, V.E., Prokazov, É.Y. et al. Electrocontact machining of very hard cast iron parts. Chem Petrol Eng 13, 272–273 (1977). https://doi.org/10.1007/BF01155257
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DOI: https://doi.org/10.1007/BF01155257