New technology of restoration and fixing of copper coolers of cooling crystallizers of CCM - G. M. Grigorenko; M. A. Poleshchuk; V. I. Zelenin; V. M. Tepljuk; E. V. Zelenin; I. V. Dotsenko; M. P. Bezhenar; V. A. Lukash; N. M. Prokopiv; S. D. Zabolotnyj (Tooling materials science, 2017)