1. Mechanical polishing hmanga polishing hman dan .
Mechanical polishing-ah chuan aluminum plate chunglam chu grinding powder, grinding cloth, leh sandpaper ang chi thil hmanga rubing a ni a, chu chuan surface effect a ti awlsam zawk a ni.
2. Chemical polishing dan .
Chemical polishing hi chemical solution hmanga aluminum plate chunglam enkawlna atana hman a ni a, chu chuan aluminum plate chung lama oxide film leh bawlhhlawh te chu a paih chhuak thei a, a chung lam chu a ti awlsam zawk thei a ni.
3. Sandblasting tih dan .
Sandblasting hi high-speed spraying of metal emaw glass bead ang maia lang emaw hmanga aluminum plate chunglam silfai a, a chung lamah khur te te leh depression te a siam a, chu chuan aluminum plate chunglam chu a ti awlsam zawk a ni.
4. Electrolytic hmanga polishing hman dan .
Electrolytic polishing tih hian aluminum plate chunglam chu electrolyte solution-ah dahin electrochemical reaction hmangin a chunglam oxide film chu a paih chhuak a, chu chuan aluminum plate chunglam chu a ti awlsam zawk a ni.
