TY CONF TI RESOURCE-SAVING TECHNOLOGY FOR THE PRODUCTION OF POWER LINE POLES FROM SOFT HARDWOOD KW wood KW through impregnation KW pressure KW impregnation compositions KW power line JO Ecological and resource-saving technologies in science and technology AU Parinov, D.A. AU Medvedev, I.N. AU Shamaev, V.A. PY 2022 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov