russian iron

例句：

1. 1. The Russian iron is strong and durable.
   俄罗斯铁很坚固耐用。
2. 2.The Russian iron is used in the construction of bridges and buildings.
   俄罗斯铁用于桥梁和建筑的建设。
3. 3.The Russian iron is a valuable resource for mining and manufacturing industries.
   俄罗斯铁是采矿和制造业的重要资源。