... .CE Certification Our double PVC pipe production line is composed by conical twin screw extruder, die, vacuum calibrator, cooling tank, haul ... the operation conditions.3. Product specification: 20mm-75mm4. The height of the centerline of the extruder: 1000mm5. The color of ... :20mm, 25mm, 32mm, 40mm, 50mm, 63mm, 75mm1 set3. Double vacuum farming tank1 set4. Haul-off and cutting machine1 set5. Stack1 ...