Muaj nuj nqi: Thaum hloov cov tswv yim tswj qhov ruaj khov tso zis rotational ceev.Cov khoom yog ua los ntawm cov khoom siv hlau zoo. Cov phaj yog punched thiab nyem bores los ntawm precision technology. Tus pin, hav txwv yeem, cov menyuam yog machined los ntawm high-efficiency tsis siv neeg cov khoom thiab tsis siv neeg sib tsoo khoom, ces los ntawm kev kho cua sov ntawm carburization, carbon thiab nitrogen tiv thaiv mesh siv rauv, nto blasting txheej txheem thiab lwm yam.