Auto Machinery is a professional manufacturer of plastic packaging machinery, thus is able to provide plastic sheet extrusion lines with different features, such as single or twin screw plastic extruder, and single or multiple layer plastic extruder. This twin screw plastic extruder can be used for manufacturing line of PET sheet materials and can reduce energy consumption of precrystallization and drying of materials. Besides, the extruder can also be used to manufacture re-grinding materials and starch-base materials.