... : single or double layersType of the bellows: annular bellowsApplications: for auto exhaust bellows, flexible metal hoses, and expansion jointsControl: PLC controlLength ... .3*20.4*20.50X20.60X20.70X20.80X20.90X21.0X2The parts will go with the machines: The molds for DN50,65 ... , 300,350,400,450,500,550,600mm Hydraulic Metal Hose Making Machine