Dab tsi yog qhov tseeb DTF Pat zaj duab xis

1. Cov qauv ntawm cov qauv tom qab kub stamping zoo ib yam li cov kua nplaum, tsis muaj qhov sib luag dua li cov kua nplaum (} Cov kev xav tau tuaj yeem hloov kho raws li cov cai ntawm cov neeg siv khoom.

2. Haum rau feem ntau ink hauv kev ua lag luam, number case 100% tuaj yeem luam tawm dawb yam tsis muaj kev sib raug zoo lossis cov kua dej ntws.

3. Qhov saum npoo ntawm zaj duab xis yog qhuav thiab tuaj yeem yog cov hmoov nrog cov hmoov ntawm daim phiaj 50-200, uas tsis lo. Daim duab yog daim duab, thiab hmoov yog hmoov. Muab cov hmoov nplaum hauv thaj chaw nrog cov number case, thiab cov thaj chaw huv uas tsis muaj tus cwj mem.

4. Lub teeb thiab cov ntshiab zoo nkauj, tsis muaj mem kua tseem nyob ntawm zaj duab xis, thiab tsis muaj cov khaubncaws sab nraud povtseg ntawm tus qauv. Txias tawg thiab qhov kub sib txawv tuaj yeem paub qhov txawv, tab sis yuav tsum ruaj khov. Qhov chaw ruaj khov ntawm no yog xav txog hauv ntu ntu ntawm ntau cov tog neeg, yog li cov xim uas tau tsoo hmoov thiab qhov sib txawv yog txhua qhov ruaj khov.