Methods for improving the efficiency of maintenance service for the hydraulic system of the “XCMG XE230C” excavator. Международный научный журнал «Инженер», [S. l.], v. 4, n. 2, p. 74–78, 2026. DOI: 10.56143/3030-3893-2026-2-74-78. Disponível em: https://engineer.tstu.uz/index.php/engineer-tstu/article/view/389. Acesso em: 26 jul. 2026.