fibrous iron

例句：

1. 1.The steel is made from fiber-iron, which is very strong and durable.
   这种钢材是用纤维铁制成的，非常坚固耐用。
2. 2.Fiber-iron is a type of metal that is used in construction for its strength and durability.
   纤维铁是一种用于建筑的金属，因其强度和耐用性而受到青睐。
3. 3. The fiber-iron beams are used to support the roof of the building.
   纤维铁梁用于支撑建筑物的屋顶。