1.Screw with special mixing and plasticization function; 2.Coat hanger type die with two throttle design enable to regulate the sheet thickness accurately; 3.+-1C temperature control make the plasticzing process and sheet thickness control more accurate. 4.Horinzontal,vertical or 45οincline type three rollers calenders may be lifted freely; 5.Sheet thickness shall be regulated by screw and pressing roller; 6.Separate roller to gain even sheet theickness; 7.Exact slicing machine,board length and quantity; 8.Winder with big torque motor,and its speed and tension force adjustable; Automatic metering to set the length of product.