PhD, Chief Welder*** S. S a k h n o Technological Engineer*** S. C h i g i l e i c h i k Chief of the Bureau of Welding*** V. N a u m y k Doctor of Technical Sciences* O. O v c h i n n i k o v Doctor of Technical Sciences, Professor, Head of the Department Department of Equipment and Technology of Welding Production** M. M a t k o v s k a Postgraduate student*
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