The characteristics of the large, medium and small upper roller universal three-roller bending machine are mainly reflected in the unique bending process of super group products, high-precision end pre-bending, continuous bending without back angle, and digital control man-machine dialogue control interface for bending process , efficient and intelligent operation of physical bending process software, man-machine dialogue window, automatic compensation of bending process. Single-handed operation, efficient, safe and convenient. Rich curved shape with different shapes such as rolled O-shape, U-shaped, multi-section R...