Supplying long-term workability of the old elements of the hydraulic facilities by using of cold compositionsA.A. Petrov, Kh.I. Kabilov, M.R. Sabirov and B.B. JurayevE3S Web Conf., 392 (2023) 01038DOI: https://doi.org/10.1051/e3sconf/202339201038