sintered iron

例句：

1. 1. The furnace is used to sinter the iron ore into a fine powder.
   炉子用来将铁矿石烧结成细粉。
2. 2. Sintered iron is stronger and more durable than traditional cast iron.
   烧结铁比传统铸铁更强、更耐用。
3. 3. In the manufacturing process, sintered iron is often used as an important component of various machines.
   在制造过程中，烧结铁常作为各种机器的重要部件。