Nyias-walled pob bearings

Cov txheej txheem polishing

Qhov saum npoo yog huv thiab huv, qhov kev thauj khoom yog qhov loj, thiab kev sib txhuam me me.

Cov kabmob hlau cov khoom siv

Cov cuab yeej siv cov kabmob steel muaj kev ua haujlwm zoo thiab tsis yog yooj yim xeb.

Cov khoom siv zoo dua

Cov khoom siv zoo tshaj, dhau los ntawm ntau cov tshuaj ntsuam thiab kuaj, kom ntseeg tau cov khoom zoo.