精品国产欧美福利久久久_(凹凸視頻)日韩精品无码一区二区中文字幕_一级国产无码在线播放_在线免费观看成人网_午夜日韩尤物AV_欧美 亚洲 日韩 一区_中国少妇与黑人3p视频_欧美亚洲国产一页_成人免费体验区福利云点播_a级高潮视频在线观看

Technical service summary for YongHang Steel Plant in Chongqing

  • Contract scope: 80 tons Consteel electric furnace and ladle
  • Technology offer: Design reasonable scheme
  • Objective: Increase steel production and reduce production costs
  • Requirements: EAF ≥ 350 times, Ladle ≥ 105 times