TY JOUR TI KW лиса черно-бурая KW дубление KW температура сваривания KW silver fox KW tanning KW svarivaniye temperature JO Herald of Technological University AU Garifullina, A.R. AU Sisoev, V.А. AU Belousova, E.V. PY 2025 IS 17 PB Kazan National Research Technological University