Process steps for the old paint on the metal for display props

How to make the old paint ?? the below is normal process steps :

1 Material adjustment (color is adjusted to use red water and green water)

2. Repair base color (usually once)

3. Seal (usually once)

4. Sanding (grinding smooth)

5. Wipe Gris (wipe with cloth, Make the wood grain clear)

6. Primer for the first time (covering Gris)

7. Sanding (buffing)

8. Brushing brush [sharp highlighting effect with steel wool]

9. Second sealing

10 sanding

11 printing (deepening a color):

12. Primer

13. Sanding (grinding smooth)

14. Repair Face

15 finish