| Business | Phone |
| 35th & Bell 2239 W 35th St, Chicago 60609 | (773) 523-2297 |
| Anderson-Shumaker Co 824 S Central Ave, Chicago 60644 | (773) 287-0874 |
| Charles E Larson & Sons Inc 2665 N Keeler Ave, Chicago 60639 | (773) 772-9700 |
| Commercial Forged Products 5757 W 65th St, Chicago 60638 | (708) 458-1220 |
| Cornell Forge Co 6666 W 66th St, Chicago 60638 | (708) 458-1582 |