UUnique Curved Technology, the end part of high accuracy has in advance curved, no back angle when bending ... , upper rcller direct pressudzation bends in advance, can complete the end part of high accuracy,bends in advances2. NC conntrol, high production efficiency, rolling ... *4000W11ST&BNC-15*2000W11ST&BNC-32*4000 W11S Medium Size Upper Roller Universal Plate Rolling Machine