TY CONF TI EXISTING DESIGNS OF ACTIVE-TYPE DISK MAIL PROCESSING TOOLS KW safety devices KW hydraulic drive KW disc plough KW cutting KW cut-out disk KW tillage JO MODERN FORESTRY COMPLEX OF THE COUNTRY: INNOVATIVE DEVELOPMENTS AND PROGRESSIVE TECHNOLOGIES AU Goncharov, D.A. AU Zimarin, S.V. AU Knyazev, A.G. PY 2025 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov