| Business | Phone |
| Alloy Oxygen & Welding Supply 60 S 24th St, Pittsburgh 15203 | (412) 381-9595 |
| Jackson Welding Supply Co 1421 W Carson St, Pittsburgh 15219 | (412) 391-4500 |
| Keystone Fastening 409 Parkway View Dr, Pittsburgh 15205 | (412) 787-5970 |
| Nelson Stud Welding 5213 Broadlea Dr, Pittsburgh 15236 | (412) 653-9324 |
| West Penn Laco Inc 1830 Liverpool St, Pittsburgh 15233 | (412) 321-1000 |