Product description and characteristics of the hydraulic three-roller symmetrical bending machine: The upper roller of the machine can be vertically lifted and vertically hydraulically driven, which is obtained by the hydraulic oil in the hydraulic cylinder acting on the piston rod; the lower roller is driven by rotation, through the reducer The output gear meshes to provide torque to the coil, and the lower roller has a roller at the lower portion and is adjustable. The upper roller has a drum shape to improve the straightness of the product.