injection mould for thermosets

例句：

1. 1. The injection mould is usedto produce plastic parts.
   注射模具用于生产塑料部件。
2. 2. The mould was madefrom a piece of metal that had beenheated and cooled.
   这个模具是由一块加热和冷却过的金属制成的。
3. 3. The mould is essential for the production ofhigh-quality products.
   模具对于生产高质量产品至关重要。