Downspout steel square tube making machine 1.Forming speed :10-12 m/min; ... purlin , C channels, wall and roof panels, roof tile, highway barrier, downspout, curving, ridge capping,embossing, tube ... . Downspout roll forming machineDescription Downspout roll forming machine is for making rain gutter, water falling tube, down spout ... more details ,please contact us Downspout Making Machine for Rain Gutter