Unaspekov Б., Sarsekeyeva Г., Konarbaeva Ж. and Abdrasilov Д. (2023) “The use of modern refractory materials for the use of gate devices”, Рroblems of engineering and professional education, 8(8), p. 72. doi: 10.32523/2220-685X-2011-8-8-72.