sheetbar and billet mill

例句：

1. 1. The sheetbar and billet mill is used to produce sheets of metal from scrap materials.
   片材机和制砖机用于将废料加工成金属板材。
2. 2. The sheetbar and billet mill is an essential tool for the construction industry.
   片材机和制砖机是建筑行业不可或缺的工具。
3. 3. The sheetbar and billet mill is a complex machine that requires skilled operators to operate safely.
   片材机和制砖机是一种复杂的机器，需要熟练的操作员安全操作。