| Business | Phone |
| Gibraltar Products 10628 Weaver Ave, South El Monte 91733 | (626) 960-5181 |
| Gibraltar Products 10628 Weaver Ave, South El Monte 91733 | (626) 618-1900 |
| Linco Caster 10749 Rush St, South El Monte 91733 | (323) 686-2891 |
| Plexa Craft Metals 2023 Chico Ave, South El Monte 91733 | (818) 246-7499 |