Unaspekov Б., Abdukalikova Г. and Apenov А. 2023. Improvement of gas supply systems for industrial furnaces. Рroblems of engineering and professional education. 10, 1 (Mar. 2023), 45–49. DOI:https://doi.org/10.32523/2220-685X-2012-10-1-45-49.