Cov txheej txheem kho saum npoo tau muab faib ua plaub yam:
1. Mechanical deg kho: xuab zeb blasting, tua blasting, polishing, dov, polishing, txhuam, txau, pleev xim, oiling.
2. Kev kho tshuaj lom neeg: bluing thiab blackening, phosphating, pickling, electroless plating ntawm ntau yam hlau thiab alloys, TD kev kho mob, QPQ kev kho mob, tshuaj oxidation.
3. Electrochemical nto kev kho mob: anodic oxidation, electrochemical polishing, electroplating.
4. Niaj hnub nimno kho deg: tshuaj vapor deposition CVD, lub cev vapor deposition PVD, ion implantation, ion plating, laser nto kho.
