Automatic flexible metal tube making machine Size:DN25 till DN300 Wall thickness:0.18 till 0. ... layersType of the bellows: annular bellowsApplications: for auto exhaust bellows, flexible metal hoses, and expansion jointsControl: PLC controlLength: ≤7500mmExpanding medium: emulsified liquidForming ... head: DN200,250, 300,350,400,450,500,550,600mm Flexible Metal Tube Making Machine