zhè / zhǒng / gāng / cái / jīng / guò / tuì / huǒ / chǔ / lǐ / hòu / yìng / dù / jiàng / dī / bǐ / jiào / róng / yì / jiā / gōng

这种钢材经过退火处理后，硬度降低，比较容易加工。

After this steel undergoes annealing, its hardness decreases and it becomes easier to process.