... ~300mm 2, Bending angle: 90-180 3, Application:aluminum alloy rail bending Dongguan RiDong Ultrasonic Machinery Co., Ltd is a ... Curtains Rail BenderThis machine is mainly used to bend aluminum alloy window curtains rails.Characters:1, PLC controller, automatic running ... : 460kgMin Bending Radius: R300mmMax Bending Radius: No limitedApplication: Aluminum alloy bendingSamples: Aluminium Alloy Bender