iron alloys的用法和样例：
例句
- Cast Alnico magnets, which are aluminum nickel-cobalt-iron alloys, are the most established and widely used permanent magnet materials.
铸造铝镍钴磁体，这是铝镍钴铁合金，是最建立和广泛使用的永磁材料。 - Practical tests have been made in smelting alloy steel and alloy cast iron using this new additive instead of ferrotitanium and basic success has been obtanied.
使用该发热铁合金剂代替钛铁，在冶炼合金钢和合金铸铁中进行了应用试验，基本取得了成功。
