Filimu yotambasula, yomwe imadziwikanso kuti stretch wrap kapena pallet wrap, ndi chinthu chonyamula zinthu zambiri komanso chogwira ntchito bwino chomwe chimagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana poteteza, kuteteza, ndi kuwonetsa katundu. Chopangidwa makamaka ndi polyethylene (PE), filimu yotambasula imadziwika ndi mtundu wake wotambasula komanso kuthekera kofanana ndi mawonekedwe ndi kukula kosiyanasiyana. Filimu yotambasula imatha kutambasulidwa mpaka zana limodzi kuchokera kutalika kwake koyambirira, zomwe zimapangitsa kuti ikulungidwe bwino pazinthu zamitundu ndi kukula kosiyanasiyana. Kapangidwe ka elastic aka kamatsimikizira kuti ikugwirizana bwino, kupereka chitetezo chabwino komanso kukhazikika. Ndi mphamvu yayikulu yokoka, filimu yotambasula imatha kupirira kupsinjika kwakukulu kwakunja, kuteteza katundu kuti asasunthike kapena kuwonongeka panthawi yonyamula ndi kusungira.
| Makulidwe osiyanasiyana | Mphamvu Yokoka (Kotalika Kotsatira) | Kutalika pa Kupuma (Longitudinal Laterial) | Mphamvu ya Kung'amba kwa Angelo (Longitudinal Laterial) | Mphamvu Yokhudza Kukhudza kapena Pendulum | Kusakhazikika | Kuchuluka kwa Kutumiza Kuwala (Chowonekera) | Kuchuluka kwa Chule (Filimu Yowonekera) |
| Micron | Mpa≥ | %≥ | N/mm≥ | J≥ | N/cm≥ | %≥ | %≤ |
| 15-17 | 37 | 350,500 | 120 | 0.14 | 3 | 93 | 2.4 |
| 18-20 | 38 | 400,600 | 120 | 0.15 | 3 | 92 | 2.5 |
| 21-25 | 39 | 400,600 | 120 | 0.17 | 3 | 91 | 2.6 |
| 26-30 | 40 | 400,650 | 120 | 0.19 | 3 | 90 | 2.7 |
| 31-35 | 41 | 450,700 | 120 | 0.21 | 3 | 89 | 2.8 |
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