The structure of this machine is designed as asymmetrical 3-roller structure form.This machine has the two functoins;prdbending and circlerolling and is widely used in decoration,chemical industry,metal structure,raceway and oil pipe line,machine manufacture and other trades.The upper roller and lower roller are the driving ones and side roller is the driven one,The lower one lifts vertically and the side one moves slantingly.This machine is convenient in operation and maintenance.So it sreally an ideal epuipment for bening and modilling the thin plates.