1. Suitable for gross ribbon width: 2000mm-5400mm 2. Suitable for gross ribbon thickness: 1.5mm-20mm 3. Linear speed of annealing lehr roller: 80-1500m/h (stepless speed variation) 4. Diameter of annealing lehr roller: 216mm-365mm. . Linear speed of annealing lehr roller: 80-1500m/h (stepless speed variation) 4. Diameter of annealing lehr roller: 216mm-365m.