I-WCGT Iso-Drill I-Drill

Igama lemveliso: I-WCGT Iso U-Drill

Iimpawu zemveliso:

I-1. Umda webala bukhali, kwaye umphezulu womhlaba unciphisa kakhulu irhafu

2. Umphezulu webala ugudileyo kwaye phantse iflethi, idityaniswe nomphetho obukhali, ovumela ukususwa kwe-chip egudileyo kunye nokusika i-chip kunye nenqanaba lokuqhuba kwebala