Tes stretch films yog siv rau phau ntawv wrapping lub loads.
Peb muaj peev xwm tsim tau phau ntawv zaj duab xis los ntawm 8 µm mus rau 35 µm nyob rau hauv thickness thiab dav ntawm 250, 400, 450 thiab 500 mm, nyob ntawm seb tus neeg muas zaub xav tau kev pab.