TY JOUR TI Improvement of circular sawing machines KW circular sawing machine KW ring saw KW actuator. JO Actual directions of scientific researches of the XXI century: theory and practice AU Derbin, M.V. 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