copper covered steel

例句：

1. 1. This type of steel is commonly used in construction because it is durable and strong.
   这种类型的钢材常用于建筑，因为它耐用且坚固。
2. 2. The copper-covered steel was installed quickly and efficiently, saving us a lot of time.
   铜包钢的安装迅速且高效，节省了我们很多时间。
3. 3. The new steel structure has been built using copper-covered steel, which is known for its high strength and corrosion resistance.
   新建造的钢结构使用了铜包钢，因其高强度和耐腐蚀性而闻名。