... 2) The set is composed of conical twin-screw extruder, vacuum cablibrating tank, haull-off, cutter, stacker or belling machine etc.3 ... efficiency No. Description Quantity1.SJSZ-51/105 Conical Twin Screw ExtruderOne set2.Twin-tube Moulds(Φ16mm,Φ20mm,Φ25mm,Φ32mm, Φ40mm)One ... set3.Vacuum calibrating and Cooling TankOne set4.Haul-off Unit and Cutter ...