Гнип ММ, Криштопа ЛІ, Криштопа СІ. INCREASED DURABILITY OF FRICTION UNITS IN OIL AND GAS INDUSTRY. Number [Internet]. 2019 Feb. 14 [cited 2025 Dec. 6];(1(37):267-76. Available from: https://pvntsh.nung.edu.ua/index.php/number/article/view/86