1. Flat Parts: Cov khoom tiaj tus yog cov duab yooj yim tshaj plaws ntawm cov khoom stamped thiab feem ntau yog siv los txuas ob qhov.
2. Bending Parts: Khoov qhov chaw yog zoo li tus arc thiab feem ntau siv nyob rau hauv tsheb chassis thiab lub cev qauv.
3. Perforated Parts: Perforated Parts yog cov khoom uas muaj ib los yog ntau lub qhov xuas nrig ntaus rau hauv cov ntawv hlau thiab feem ntau yog siv los txuas lossis ruaj ntseg lwm qhov.
