通过液压力、机械力等外力的作用，使工作辊运动从而使板材压弯或卷圆成形。

Through the action of hydraulic pressure, mechanical force and other external forces, the work rolls are moved to bend or roll the plate. According to the work rolls of different sizes and shapes, elliptical parts, curved parts, cylindrical parts and other parts can be processed.

通过液压力、机械力等外力的作用，使工作辊运动从而使板材压弯或卷圆成形。根据不同大小和形状的工作辊的可以加工出椭圆形件、弧形件、筒形件等零件。

Through the action of external forces such as hydraulic pressure and mechanical force, the work roll moves to bend or roll the sheet metal. According to different size and shape of the work roll can be processed into oval, arc, cylinder and other parts.<br>