high purity ferrosilicon

例句：

1. 1.The high purity ferrosilicon is used in the production of steel.
   高纯度硅铁用于生产钢铁。
2. 2. The high purity ferrosilicon is a valuable resource for metallurgy.
   高纯度硅铁是冶金业的宝贵资源。
3. 3. The high purity ferrosilicon is essential for the development of new materials.
   高纯度硅铁对于新材料的发展至关重要。