cold heading die

例句：

1. 1. The cold heading die is a critical component of the engine's cooling system.
   冷导向器是发动机冷却系统的关键部件。
2. 2. The engineer designed the cold heading die to optimize performance.
   工程师设计了冷导向器以优化性能。
3. 3. The cold heading die was used in the manufacturing process to prevent overheating.
   在制造过程中使用了冷导向器以防止过热。