This cold rolling mill intermediate roll applies to high precision rolling mill with 6 rolls, as well as a few mills with 8 rolls. It is named based on its working location between the work roll and back-up roll, mainly used to control the shape of plate. This product is commonly made of the steel with 2%Cr, 3%Cr and 5%Cr, as well as the semi high speed steel. Its hardness generally ranges from 70 to 85HSD. The difference on hardness of the product with the work roll is about 10 to 15HSD.