... of conical twin-screw extruder, vacuum cablibrating tank, haull-off, cutter, stacker or belling machine etc.3) The extruder and haul ... , three caterpillars, four caterpillars, six caterpillars etc are designed for different requirements.5) It is additionally attched with length measuring ... Vacuum calibrating and Cooling TankOne set4.Haul-off Unit and Cutter for Dual-tubeOne set5.Revolving Stage ...