copper mould wall

例句：

1. 1. The copper mould wall is used to make the final product.
   铜模墙用于制作最终产品。
2. 2. The copper mould wall was designed to protect the mold from damage.
   铜模墙设计用来保护模具免受损坏。
3. 3. The copper mould wall was made of a high-quality material that would not wear out easily.
   铜模墙是由一种高质量的材料制成的，不容易磨损。