iron and steel scrap

例句：

1. 1.The factory is producing iron and steel scrap for the construction industry.
   这个工厂正在为建筑业生产铁和钢废料。
2. 2. The scrap metal is sold to recyclers for reuse.
   这些废金属被卖给回收商进行再利用。
3. 3.Steel scrap is often used as a raw material in the production of new steel.
   废钢经常被用作生产新钢材的原材料。