Across
- 2. A liquid sprayed on material surface
- 6. Corrosion occur along grain boundaries
- 8. coating method
- 10. combination of 2 or 3 different metals
Down
- 1. protected oxide layer
- 3. use metal layer to cover material surface
- 4. a type of steel to prevent corrosrion
- 5. sealing method to avoid corrosion
- 7. metals with different potential
- 9. most dangerous corrosion