aluminum pipe/ tube bending machine 1man-machine dialogue operation 2Japan Yuken valve 3Max bending pipe:d219 4Touch screen DW63CNC hydraulic aluminum pipe bending machineAuto clamping, Auto feeding ... machine: carbons steel, stainless steel, aluminum, alloy, copper, brass etc. 2, Applicable tube shape:pipe, tube, solid steel bar, square pipe, rectangle, oval, sections etc ...