hot brittle iron

例句：

1. 1.The hot brittle iron is used in the manufacturing of various metal products.
   热脆铁用于制造各种金属产品。
2. 2. The hot brittle iron has excellent mechanical properties and can be easily processed.
   热脆铁具有优良的机械性能，易于加工。
3. 3. The hot brittle iron is widely used in the construction industry due to its high strength and ductility.
   由于其高强度和良好的可塑性，热脆铁在建筑业中得到了广泛应用。