（1）Hinge pattern plate is adopted, which is convenient to open and close. At the same time, the pattern plate is equipped with a scale plate, which can accurately read out the bending angle.

（2）The upper and lower flower plates have be subjected to special heat treatment, which is firm and durable and avoids deformation due to orifice tension resistance.

（3）Flat and vertical bending can be completed only by changing a die head. When bending vertically, the mold clamping plate is provided with a guide plate, so that the copper-aluminum row works in the same plane when bending, and the surface smoothness is good.

（4）The design of oil cylinder with single oil circuit adopts tension spring to reset, and it can work when equipped with single oil circuit pump.