... cable laying etc.2) The set is composed of conical twin-screw extruder, vacuum cablibrating tank, haull-off, cutter, stacker or belling ... machine etc.3) The extruder and haul-off machine adopt the imported AC frequency control ... efficiency No. Description Quantity1.SJSZ-51/105 Conical Twin Screw ExtruderOne set2.Twin-tube Moulds(Φ16mm,Φ20mm,Φ25mm,Φ32mm, Φ40mm)One ...