Professional machine for producing spiral tube , HVAC DUCT for ventilation purpose 1. Thickness : 0.4- 1.2 mm 2. Diameter :75/80-1500mm 3. Width of coil : 137 mm 4. Feeding speed : 1-40m/min 5. Length : Unlimited 6. Power :9.5KW 7. Cutting system : saw cutting 8. Voltage : 380V /Customized 9. Packing with wooden case for exporting