1. adopting newly-designed mix-smelting screw ensures the well-proportion plasticization
2. Double-throttle design for hanger- style die makes the adjustment of sheet thickness more precise.
3. vertical or 45 degree steep style design for three-roller calendar, dynamoelectric or manually slightly with separate water temperature control
4. inverter control for hauling-off unit, synchronous with the extruder
5. double-station coiler
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