According to different support, models have standard A and return B Functions like manual, automatic, semi cycling, full cycling are for choice Users programs are stored permanently, extra battery is not required Mobile panel switch, it has automatic start, emergency stop, stop continue functions. Highest safety Two working heads can work separately or synchronously Different bending R will be done in same time Pipe bending clamping devices are powerful to ensure bending precision Multi working pieces can be processed in same time circularly and efficiently Compact and nice appearance, concision design, offering the largest bending space Space corner head can make 90 degree outside, making processing flexible and large ranging for pipe bending Extra large bending R, pipe Dia, pipe thickness. Additionally designed horizon drive bending and 4 corner frames