Raws li cov duab, kas fes tote hnab feem ntau yog cov duab plaub. Cov duab no yooj yim nqa thiab muab kev ruaj ntseg rau khob kas fes, tiv thaiv tipping. Tsis tas li ntawd, kom ua tau raws li kev xav tau ntawm kev siv sib txawv, lub hnab kas fes kuj muaj ntau hom, xws li cov square tiaj tus - hnab hauv qab, hnab ris slanted, U- cov hnab hauv qab, thiab hnab drawstring. Cov duab sib txawv no tsis tsuas yog ua tau raws li kev siv ntau yam tab sis kuj ntxiv kev lom zem thiab tus kheej rau lub hnab kas fes tote.
Nyob rau hauv cov nqe lus ntawm craftsmanship, lub manufacturing txheej txheem ntawm kas fes tote hnab kuj sophisticated heev. Ntxiv rau cov txheej txheem yooj yim xws li txiav, folding, thiab gluing, cov txheej txheem tshwj xeeb xws li kub stamping thiab embossing tuaj yeem siv raws li cov neeg siv khoom xav tau. Kev siv cov txheej txheem no tsis yog tsuas yog txhim kho qhov pom kev pom ntawm lub hnab kas fes tote tab sis kuj ua rau lawv muaj kev xav ntau dua thiab muaj txiaj ntsig zoo.
