| GATEWAY ALLOYS | ||||
| YELLOW PFM ALLOYS | ||||
| Au | Pt | Pd | Ag | Gateway |
| 75 | 18 | 1 | AURORA 75 | |
| 78 | 19 | CONCORD 78 | ||
| 81 | 6 | 4 | 5 | CONCORD 81 |
| 82 | 15 | CONCORD 82 | ||
| 86 | 11 | CONCORD 86 | ||
| 88 | 10 | CONCORD 88 | ||
| 90 | 6 | 2 | 1 | CONCORD 90 |
| 97 | 2 | DE ORO 97 | ||
| 99 | .1 | DE ORO 99 | ||
| 74 | 4 | 8 | 11 | GATEWAY 74 |
| 75 | 12 | 10 | GATEWAY 75 | |