Rotary head polypropylene blowing film machine extruder cylinder, screws are all used high quality alloy steel, by nitriding and precision machining. A tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈ Ka tɛmɛ kä wïc në luɔɔi de extruder, ka tɛmɛ 3 m, ka tɛmɛ film: ka tɛmɛ piny. Rolling device uses force torque motor, can keep the appropriate tension, roll up neatly, roll change easily. Rolling device uses force torque motor, can keep the appropriate tension, roll up neatly, roll change conveniently. Rolling device uses force torque motor, can keep the appropriate tension, roll up neatly, roll change conveniently.