copper scrap

例句：

1. 1. The scrap metal is being recycledfor reuse.
   这些废金属正在被回收再利用。
2. 2. The copper scrap was collectedfrom the old factory site.
   铜废料是从旧工厂地点收集来的。
3. 3. Copper scrap is a valuableresource that can be used tomake new products.
   铜废料是一种宝贵的资源，可以用来制造新产品。