TY JOUR TI ASSESSMENT OF THE EFFECTIVENESS OF SELECTIVE LASER SINTERING METHOD FOR STRENGTHENING SOIL TILLAGE WORKING UNITS KW working units KW tillage machines KW economic efficiency of use KW plasma-powder surfacing KW 3D printing KW selective laser sintering method JO Vestnik of Kazan State Agrarian University AU Mironov, D.A. AU Lamm, A.K. AU Rasulov, R.K. PY 2024 IS 19 PB Kazan state agrarian University