For citations:
Afanasyev A.E., Kargin V.R., Kargin B.V. Force conditions for light-alloy spiral-finned drill pipe extrusion. Izvestiya. Non-Ferrous Metallurgy. 2016;(2):58-63. (In Russ.) https://doi.org/10.17073/0021-3438-2016-2-58-63
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