Round Rainspout Forming Machine, Round Downpipe Forming Machine, Round Downspout Forming Machine 1). Down pipe forming machine mainly consists of decoiler, roll forming system,cutting equipment, protective guard, hydraulic system, control system, andproduct ... biting5. Curving speed: 20-25m/min6. Dimension: 1300*650*1500mm Round Downspout Forming Machine