Polypropylene (PP) ndi amodzi mwa ma thermoplastics omwe amagwiritsidwa ntchito kwambiri padziko lonse lapansi, omwe amagwiritsidwa ntchito potengera kulongedza, nsalu, zida zamagalimoto, ndi zinthu za ogula. Kusinthasintha kwake, kukana kwamankhwala, komanso kukwera mtengo kumapangitsa kuti ikhale yosankha m'mafakitale onse. Ku Jushuo Packaging, timakhazikika pakusintha ma polypropylene kukhala zingwe zapamwamba za PP zopangira ma CD. Bukuli likuwunika momwe ma polypropylene amagwiritsidwira ntchito, kuyambira pakuyika ndi zomangira mpaka zida zamagalimoto, nsalu, ndi ntchito zamankhwala. Kumvetsetsa momwe zinthu zimagwirira ntchito komanso momwe zimagwiritsidwira ntchito kumathandizira akatswiri ogula zinthu kuzindikira chifukwa chomwe PP strapping imapereka mphamvu, kusinthasintha, komanso kutsika mtengo pazosowa zawo zonyamula.
Kutchula chingwe cha PP (chingwe cha polypropylene) molondola n'chofunika kuti pakhale ntchito yolongedza komanso mtengo wake. Bukuli lili ndi magawo ofunikira: m'lifupi (5-19mm), makulidwe (0.35-0.80mm), mphamvu yopumira (45-230kg), kumaliza pamwamba, ndi milingo ya roll. Kumvetsetsa momwe gawo lililonse limakhudzira kugwirizana kwa zida, chitetezo cha katundu, ndi mtengo wonse kumathandiza akatswiri ogula zinthu kutchula chingwe choyenera cha ntchito yawo. Malinga ndi miyezo yamakampani, kutsimikizika kolondola kumachepetsa nthawi yocheperako, kumapangitsa kukhazikika kwa katundu, ndikukulitsa mtengo wazinthu.
Kumanga kwa PP (zomanga za polypropylene) kumatenga gawo lofunikira pakuyika zaulimi, kuteteza mabale a udzu, thonje, silage, ndi mitolo ya mbewu posungira ndi kunyamula. Kamangidwe kake kopepuka, kusinthasintha, komanso kutsika mtengo kumapangitsa kukhala koyenera kwa malo olima omwe amavuta. Kupezeka m'lifupi kuchokera pa 5mm mpaka 19mm ndi mphamvu yopuma kuchokera ku 45kg kufika ku 230kg, zomangira PP zimatenga chirichonse kuchokera ku mitolo ya mbewu zopepuka mpaka mabele olemera a udzu. Bukhuli likuwunika zofunikira, zopindulitsa, ndi njira zosankhidwa za PP kumangirira pazaulimi.
Kugula zingwe zogwiritsira ntchito thonje kumafuna kumvetsetsa zofunikira za mphamvu yopuma, malamulo oyendetsera ntchito, ndi kuthekera kwa ogulitsa. Malinga ndi mafotokozedwe a JCIBPC, zomangira balere za thonje ziyenera kukwaniritsa mphamvu zopumira zochepa zokwana mapaundi 3,200–4,000 kutengera mtundu wa bale. Bukhuli likukhudza mfundo zazikuluzikulu zogulira zinthu kuphatikiza zofunika za katchulidwe kake, njira zowunikira omwe amapereka, ndi kusanthula mtengo wothandiza ogula kupanga zisankho zolondola pazantchito zawo zowotcha thonje.