| HT- 1 | Heat Treatment of Aluminum Alloys | Heat Treat |
| Supersedes: None | Superseded By: None | |
| Selected sector: AS | Date added: | |
| SupplierNumber | SupplierName | State | CountryName |
| 90067803 | ALIGN PRECISION CORP | UT | United States |
| 90024576 | ASTRO ALUMINUM TREATING CO INC | CA | United States |
| 90051687 | Bodycote West | KS | United States |
| 90053657 | VALCO INC | OK | United States |