Zhè jiā zhágāngchǎng qùnián wánchéng le jìshù shēngjí.
This rolling mill completed a technology upgrade last year.
Tips
usage
Note 轧 has two readings: zhá (to roll, in 轧钢, 轧路机) and yà (to crush over, in 轧死). For the rolling-mill sense always read zhá. A general 'steel mill' is 钢厂 or 钢铁厂; a 轧钢厂 specifically does the rolling step.
