... duct machine 1.Weight:1200kg 2.power:3kw Aluminum Foil wire round Flexible duct machine Main technical data:Diameter80600mmRoll Round ... main products:spiral tube forming machine,flexible duct forming machine,auto roof forming machine,riveting machine,Pittsburgh seam lock machine. ... machine,metal sheet flange forming machine,TDF hydraulic folder,auto cutting to length line,pipe bending machine,FN seam ...