Ithegi ye-NFC anti metal yenziwe nge-glue yephepha noma ikhadi le-PVC elinesendlalelo sezinto ezimunca, ezingafeza umphumela wokuphazamiseka kwe-anti metal. Ilebula lingafundwa futhi libhalwe ebusweni bensimbi. I-PVC enelebula elimelana nensimbi ingavimbela amanzi, i-asidi, i-alkali kanye nokushayisana, futhi ingasetshenziswa ngaphandle.
Ithegi ye-NFC anti metal ekhiqizwe yi-MINA ingaba nezigaba ezine ezilandelayo zamalebula e-NFC:

Uhlobo lokuqala lwethegi ye-NFC anti metal lusekelwe kuphrothokholi ye-14443a. Inkumbulo encane yelebula ngamabhayithi angu-96, angandiswa ngokuguquguqukayo. Uma amathegi ehilela kuphela isitoreji sokufunda nokubhala esilula, njengokusetshenziswa komsebenzi wephosta olula ohlakaniphile, amathegi anjalo atholakala ngokugcwele. Lolu hlobo lwethegi lusetshenziswa kakhulu ukufunda ulwazi futhi lunezinzuzo zokusebenza okulula kanye nezindleko eziphansi.

Uhlobo lwesibili lwelebula le-NFC elilwa nensimbi lusekelwe kuphrothokholi ye-14443a, kodwa lusekela kuphela ikhadi elinikezwe yi-Phlips.

Uhlobo lwesithathu lwelebula elimelana nensimbi le-NFC uhlobo lobuchwepheshe be-fecila olunikezwa yi-Sony kuphela.

Ithegi yesine ye-NFC anti metal inephrothokholi engu-14443A/B. Lolu hlobo lwethegi lungolwethegi ehlakaniphile, luthola imiyalelo yeyunithi yedatha yephrothokholi yesicelo (i-APDU), lunendawo enkulu yokugcina, lungaqedela i-algorithm ethile yokuqinisekisa noma yokuphepha, futhi lungasetshenziswa ukwenza ukusebenzisana okuhlakaniphile kanye nokusebenza okuhlobene kwelebula yesixhumi esibonakalayo esikabili. Lolu hlobo lwelebula lunezinhlelo zokusebenza eziningi futhi lungavumelanisa nocwaningo oluqhubekayo kanye nentuthuko esikhathini esizayo.