1. CNC kev khiav hauj lwm qhov system
2. Tag nrho-scale sib tsoo, grooving thiab txiav muaj peev xwm
3. Ib puag ncig tus phooj ywg
4. Kev ua haujlwm siab
5. Kev ua haujlwm yooj yim
6. Cov npog tag nrho rau kev nyab xeeb tuaj yeem xaiv tau
7. Daim ntawv pov thawj CE tuaj yeem muab tau