2 sentences

1. 废铁被投入炼钢炉中熔化。

   fèi​tiě bèi tóu​rù liàn​gāng lú zhōng róng​huà.

   Scrap iron was put into the steel furnace to melt.

   Source: Dong Chinese Dictionary

2. 这些旧机器现在只是一堆废铁。

   zhè​xiē jiù jī​qì xiàn​zài zhǐ shì yī duī fèi​tiě.

   These old machines are now just a pile of scrap metal.

   Source: Dong Chinese Dictionary