Decreasing carbon content of slag and enriched layer, increasing properly viscosity of slag and operating steadily are the keys to provide ag...

 
  • 降低保護渣熔渣層和富碳層的碳含量、適當提高熔渣的粘度和穩定操作是防止鋼液增碳的關(guān)鍵。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan