1.This equipment adopts 3-roller symmetrical structure. With the drive of the screw, the nut, the worm and the lead screw, the u W11 Mechanical 3-Roller Symmetrical Plate Rolling MachineFeatures of W11 Mechanical 3-roller Symmetrical Plate Rolling Machine:1.This equipment adopts 3-roller symmetrical structure. With the drive of the screw, the nut, the worm and the lead screw, the upper roller ...