Raug lead lom Holographic counterfeit los tiv thaiv cov ntawv kev cai

Tej notable feature qhia hais tom qab rau kom yaws, qhia cov cai nraaj. Txhuas txheej tshwm ua tus khaws cov yaj Yu, ces muab tua cov yeeb yam pem teb overcast hollow lus, yin thiab tus kwv tij yaj pov tseg. Cov ntsiab lus qub, ib yam me me, las nraaj rooj li 200dpi. Nws muaj ib qho yooj yim mus use thiab counterfeiting nyuaj los nrhiav qhov zoo, yog tsim rau sealing kawm counterfeit los tiv thaiv cov ntawv thov. tsis tas li ntawd. Hom kev qhia kom paub yog lub peev xwm ntau tshaj ib chav tsev hauv cheeb tsam uas muaj cov cab kuj qhia, nws yuav cuam tshuam txog cov lus qhia muaj plaub hom ntawv nraaj. Thawj txheej, ntawm cov tsiaj ntawv sau duab (ruaj ntseg inks); holographic nraaj txheej, txheej ob ntawm txhuas; ib cov txheej uas peb, raug lead lom txheej ntawm graphics; muaj 4 txheej, lub qab hauv daim duab.