1. Zinc Plating 
2. Phosphating
3. Black Oxide / Blackening
4. Cadmium Plating 
5. Chrome Plating
6. Nickel plating
7. Hot-dip galvanizing
8. Zincifying
9. Dacromet
10.Geomet
11.Stainless Steel Passivation 
12.Liquid or Powder Coating 

SURFACE TREATMENT