According to materials, cold rolling mills are divided into stainless steel cold rolling mills and carbon steel cold rolling mills, as well as other metal cold rolling mills. In rolling stainless steel materials and rolling carbon steel materials, the process of cold rolling mills is basically the same. The difference is that there are some differences in device configuration.

Due to the difference between the materials of stainless steel and carbon steel, stainless steel cold rolling mills generally use solid barrels for crimp barrels. The cold rolling mill that produces carbon steel coils uses hydraulic expansion and contraction drums. This is different. There is a difference between the loading and unloading of the trolley and the loading and unloading of the trolley before and after rolling.