TY JOUR TI DEVELOPMENT OF DESIGN-ENGINEERING CLASSIFICATION OF MACHINE PARTS KW classification KW coding KW quality parameters of surface layer KW surface KW typing KW unification KW operational properties JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Kharlamov, Y.A. AU Vishnevskiy, D.A. AU Petrov, P.A. AU Orlov, A.A. PY 2023 IS 8 PB Belgorod State Technological University named after V.G. Shukhov