| Business | Phone |
| Jeford Industries 4120 W Jefferson Ave, Detroit 48209 | (313) 842-1331 |
| Thyssen Krupp Budd 12141 Charlevoix St, Detroit 48215 | (313) 823-9100 |
| Webster Cold Forge Co 215 Vinewood St, Detroit 48216 | (313) 554-4500 |
| United Metal Products Corp 8101 Lyndon St, Detroit 48238 | (313) 933-8750 |