PVC daim ntawv tseem ceeb yog cov khoom nruab nrab tseem ceeb rau daim npav ID, kev ua tswv cuab thiab RFID phaib, nrog rau cov khoom suav nrog ntau dua 80% kev ua lag luam thoob ntiaj teb ua tsaug rau kev ua tau zoo thiab kev sib koom ua ke ntawm cov khoom lag luam. Qhov tsab xov xwm no teev cov Tuam Tshoj sab saum toj 15 tuam txhab uas muag nrog qhov sib txawv ntawm qhov chaw thiab qhia cov tswv yim xaiv cov neeg muag khoom. Cov neeg muag khoom suav tuaj yeem ua tau raws li cov khoom siv raw xav tau ntawm cov neeg tsim daim npav thoob ntiaj teb.
