The article mentioned the experimental copper-smelting blast furnace of Zhengzhou Kejia Furnace company. The paper also singled out China's Zhengzhou Kejia Furnace Co., Ltd. Here, I am also very grateful to the Institute of Chemistry and Metallurgy, Academia Sinica, China, for its recognition and recommendation. Our Kejia company has long been committed to the heat treatment industry and has contributed a lot to materials research for domestic and foreign research institutes.