国产婷婷综合在线视频中文|欧美日韩在线视频|欧美一区二区精品|久久精品中文字幕一区 国产精品一区二区不卡的视频_日韩高清成人免费播放_国产白白视频在线观

In order to assist the Second Steelmaking Plant of Wuhan Iron and Steel Group Company in improving the quality of refined silicon steel and enhancing the competitiveness of its products. After four years of repeated argumentation, arduous verification, and continuous learning, the technical personnel of Torch Company and the Second Steelmaking Plant of Wuhan Iron and Steel Group Company, with the spirit of practicality, truth-seeking, and striving for excellence, finally developed the first continuous casting fan section electromagnetic stirring system dedicated to improving the quality of silicon steel in the country.