Features: 1) Good mould ability due to the large L/D ratio of the screw in the extrusion unit 2) Uses advanced electrical and laser - pressed devices in the mould net changingfittings 3) Easy operation easy 4) Improves production efficiency 5) The mould of heat inside is featured by easy mould adjusting, equal sheetthickness, constant flowing speed, high hot utilization and energy saving 6) Sheet cutting machines work automatically, such as cutting slices with settledlength, counting numbers by adopting the micro-computer and laser-pressed control