1. screw with special mixing and plasticizing function. 2. dual throttle T-die ensure the sheet thickness can be adjusted accurately. 3. three roller calendar with worm/individual transmission separate water temperature control. 4.10-meter to 40-meter cooling frame, ensure the plate cooling. 5. haul-off unit with inverter or converter controller ,pneumatic clamping with adjustable force. 6. length setting cutting ,lower noise, suck collection. 7. it can produce PVC plate and PVC foam plate through changing extruder to twin screw extruder.