... 2, Bending angle: 90-180 3, Application:aluminum alloy rail bending Dongguan RiDong Ultrasonic Machinery Co., Ltd is a ... curtains fabric cutting/slitting/welding machine, window curtains rail bending machine, etc. Window Curtains Rail Cambering MachineThis machine is mainly used to bend ... Radius: R300mmMax Bending Radius: No limitedApplication: Aluminum alloy bendingSamples: Rail Cambering Machine