ferrotungsten

例句：

1. 1. This alloy is used in cutting tools to increase their hardness and durability.
   这种合金用于切削工具，以增加其硬度和耐用性。
2. 2.The steel industry relies heavily on the production of ferrotungsten for its structural components.
   钢铁行业严重依赖生产钨铁合金来制造其结构部件。
3. 3. The engineers were tasked with developing a new ferrotungsten alloy that could withstand extreme temperatures.
   工程师们被指派开发一种新型的钨铁合金，该合金能够承受极端温度。