Modernization of electric circuit of machine A-1150 for welding of vertical welds

by V. I. Stepakhno, L. N. Kopylov, G. S. Zelenchenok
Published 2011

40 years of welded structure of Kiev TV tower

by L. M. Lobanov, E. F. Garf, L. N. Kopylov, A. G. Sineok
Published 2014