Hauv kev xa khoom, chaw cia khoom, thiab ntim khoom, cov khoom ntim yas ntim tau nce zuj zus los hloov cov thawv ntawv ib txwm siv vim lawv qhov hnyav, ruaj khov, thiab rov siv dua.
Cov ntaub ntawv tseem ceeb ntawm cov yas foldable yog feem ntau siab - ntom polyethylene (HDPE) los yog polypropylene (PP), ob qho tib si uas muaj tshuaj lom neeg ruaj khov thiab cuam tshuam- tiv taus. Qee cov khoom lag luam txo cov nqi thaum tswj lub zog los ntawm kev kho qhov sib piv ntawm nkauj xwb rau cov khoom siv rov ua dua tshiab (piv txwv li, 30% rov ua dua + 70% nkauj xwb). Lub crate phab ntsa tuab yog tsim los ntawm 2-12 hli, uas tuaj yeem hloov kho raws li qhov yuav tsum tau ua. Piv txwv li, 2 hli phab ntsa tuab yog tsim rau cov khoom sib sib zog nqus, thaum 12 hli phab ntsa tuab tuaj yeem txhawb nqa ntau tshaj 50 kg. Cov npoo ntawm lub crate yog sib npaug los tiv thaiv khawb thaum tuav, thiab cov hauv qab thickened txhim khu kev tiv thaiv.
