Aitch metal

例句：

1. 1. The construction of the bridge required a lot of Aitch metal.
   建造这座桥需要大量的金属。
2. 2. This new car uses Aitch metal for its body.
   这款新车的车体使用了金属。
3. 3. Aitch metal is widely used in manufacturing due to its strength and durability.
   由于其强度和耐用性，金属在制造业中被广泛使用。