Cov khoom tseem ceeb ntawm cov thawv hamburger feem ntau yog cov zaub mov - qib dawb cardstock los yog kraft ntawv, featuring ib tug nto lamination kho los txhim kho cov roj thiab dej.
Piv txwv li, ib daim duab los qhia thickness ntawm 0.5 hli ua kom lub thawv tseem ruaj khov thiab nruj yam tsis muaj nqi ntau dhau vim qhov tsis tsim nyog. Cov qauv feem ntau siv ob - txheej txheej folding tsim, ua kom yooj yim los ua ke los ntawm kev ua ntej -creasing; hauv qab thiab sab vaj huam sib luag yog ntxiv dag zog los tiv thaiv deformation thaum lub sij hawm thauj mus los.
Qee cov khoom lag luam muaj kev xaiv los luam cov cim npe, siv cov xim luam ntawv los siv cov duab ncaj qha rau ntawm daim duab los qhia, yog li tshem tawm qhov xav tau ntawm cov ntawv sau cais.
