Pay attention to the following points when using color-coated steel rolls to prevent damage to the color-coated rolls and reduce service life. 1. When loading and unloading, rubber pads should be added to the contact between the crane and the color-coated coil to prevent scratches and paint peeling off. 2. When the color-coated roll needs to be cut longitudinally, lay a rubber mat on the equipment floor that is in contact with the color-coated board. After cutting, the metal shavings should be removed immediately to prevent the coating on the surface of the pre-painted plate from being scratched.