Special design in changing &mixing screw, for better plasticization and higher extrusion capacity. Single layout and multi-layout extrusion can be customer?s choice; T mould with double throttle, it can adjusts thickness of sheet exactly. Temperature control tolerance within ±1°C, precise control in the whole plasticization course. Patented three-roller calender can be arranged in horizontal, vertical and 45°angles. Width of sheet: 500-1220mm Thickness of sheet: 0.14-2.0mm Max. capacity: 500kg/h