hollow cast wheel

例句：

1. 1. The hollow castingwheel is used to produce intricate shapes in metal.
   空心铸造轮用于金属中制造复杂的形状。
2. 2. The hollow casting wheel is a critical component in the manufacturing process.
   空心铸造轮是生产过程中的关键部件。
3. 3. The hollow casting wheel is designed to reduce the weight of the final product.
   空心铸造轮设计用来减少最终产品的重量。