PVCDual tube production line is developed by our company using advanced technology. Dual tube production line is developed by our company using advanced technology. Dual tube production line is developed by our company using advanced technology. Dual tube production line is developed by our company using advanced technology. JZ51/105 wala SJ65/132 conical double screw extruder, ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ ye kɔnɔ