312 — Mining, manufacturing and construction supervisors
| Code | Description |
|---|---|
| 3121 | Mining supervisors |
| 3122 | Manufacturing supervisors |
| 3123 | Construction supervisors |
| Code | Description |
|---|---|
| 320 | Supervisores en ingeniería de minas, de industrias manufactureras y de la construcción |
| Code | Description |
|---|---|
| 320 | Supervisors en enginyeria de mines, d'indústries manufactureres i de la construcció |