金属板

例句：

1. 1. The car is made of steel.
   这辆车是用钢做的。
2. 2. He used to work in a factory that produced alloys.
   他以前在一个生产合金的工厂工作。
3. 3. Precious metals are highly valued for their rarity.
   贵金属因其稀有性而价值极高。