TY JOUR TI Design and determination of the working surface parameters of spring-tongue directing for narrow band saw KW band saw KW spring-tongue directing KW lift capacity KW durability KW sawing accuracy KW bending KW lumber quality. JO Actual directions of scientific researches of the XXI century: theory and practice AU Derbin, M.V. AU Sivkov, K.. AU Derbin , V.. PY 2015 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov