cogged ingot

例句：

1. 1. The forge produced a cogged ingot that was used to make tools.
   锻炉生产了一个铁块，用来制作工具。
2. 2.The old mill still produces cogged ingots, which are used as raw materials for metallurgy.
   旧磨坊仍然生产铁块，作为冶金的原材料。
3. 3. The carpenter used the cogged ingots to reinforce the wooden beams.
   木匠使用铁块加固木梁。