... series 4-rolling machine 2)rolling machine and plate rolls 3)4-rolling machine 4)colling machine/forming machine ZDW12 series 4-rolling machine,rolling machine,colling machine, ... roll and side-roll, is electrically controlled.The machine can finish pre-changing of two ends of plates, rolling of ... cylindrical or arc parts, levelling and pre-bending of metal plates at one time,thus, it ...