In accordance with reduction reaction in cupola, we make use of cheap boron ore instead of ferroboron to cast cylindel liner successfully.
英
美
- 根据冲天炉的冶金还原反应原理,在炉后加入廉价的硼矿石,代替昂贵的硼铁合金生产气缸套,取得显著的经济效益。