TY JOUR TI COMPARATIVE PARAMETERS OF PRODUCING RAILWAY ROLLING STOCK COIL SPRINGS KW spring steels KW equipment KW evaluation KW strength KW parameters KW transport JO Transport engineering AU Fedin, V.M. AU Boymatov, A.A. AU Fimkin, A.I. AU Korzhin, S.N. PY 2024 IS 2024 PB Bryansk State Technical University