semisteel casting

例句：

1. 1. The company uses a semisteel casting process to produce its products.
   该公司使用半钢铸造工艺生产其产品。
2. 2.The engineer designed a new semisteel casting for the machine.
   工程师为机器设计了一种新的半钢铸造。
3. 3. The semisteel casting is stronger and more durable than traditional metal castings.
   这种半钢铸件比传统的金属铸件更坚固耐用。