Kev tsim khoom thiab ua cov khoom siv: Tsugami CNC tshuab dhos, CITIZEN CNC tshuab dhos, STAR CNC tshuab dhos (ntsuas los ntawm Nyiv) Khoom siv -2. Automatic tshuab dhos: Khoom siv -3. Tsis siv neeg tapping tshuab Khoom siv -4. Tsis siv neeg qhov milling tshuab