New methods to determine the hardness and microhardness shock non-ferrous metals and their alloys von O. O. Kotrechko

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Determining shock hardness and micro hardness of nonferrous metals and their alloys von O. O. Kotrechko

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New methods of determining the hardness of metals von O. O. Kotrechko

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Military protective helmet von O. O. Kotrechko, V. I. Veis

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Dependence of the Critical Temperature Magnitude at Impact Toughness Tests on the Parameters of the Microstructure of Martensitic Low-Carbon Steels von S. O. Kotrechko, Yu. Ya. Mieshkov, R. V. Telovych, V. M. Hryshchenko

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