Прогресивні технології в машинобудуванні

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The prevent of the loss of washing fluid in the drilling process thanks to reducing the gap of the tool joint tapered thread to effectively
(2020-02-03) Onysko, Oleh; Borushchak, Lubomyr; Tkachuk, Valentyna; Barz, Cristian; Ivano-Frankivsk National Technical University of oil and gas; Lutsk National Technical University; Technical University of Cluj-Napoca - North University Centre of Baia Mare