Uchungechunge 5/6/7 luzosetshenziswa ekucubunguleni kwe-CNC, ngokuya ngezakhiwo zochungechunge lwe-alloy.

5 ama-alloys ochungechunge ngokuyinhloko angu-5052 no-5083, anezinzuzo zokucindezelwa okuphansi kwangaphakathi nokuhlukahluka komumo ophansi.

Ama-alloys angu-6 ochungechunge ngokuyinhloko angu-6061,6063 no-6082, angabizi kakhulu, aqine kakhulu kunochungechunge olu-5 nokucindezeleka kwangaphakathi okuphansi kunochungechunge oluyisi-7.

7 uchungechunge lwe-alloy ngokuyinhloko luyi-7075, olubonakala ngobulukhuni obuphezulu, kodwa ukucindezeleka okukhulu kwangaphakathi nobunzima obukhulu ekucubunguleni.