alloyed iron

例句：

1. 1. The alloyed iron was used to make the bridge.
   这种合金铁被用来制造桥梁。
2. 2. Thealloyed iron is stronger and moredurable than regular steel.
   这种合金铁比常规钢更坚固耐用。
3. 3. Thealloyed iron isused in many industrial applications.
   这种合金铁在许多工业应用中都有使用。