iron and steel company

例句：

1. 1. The ironand steel company is the largest in theregion.
   这家钢铁公司是该地区最大的。
2. 2. The ironand steel company has been working on anew project for months.
   这家钢铁公司已经为这个项目工作了几个月。
3. 3. The ironand steel company is responsiblefor producing all the steel neededfor construction projects.
   这家钢铁公司负责生产所有建筑项目所需的钢材。