| Business | Phone |
| Hughes Grinding 2101 S Hellman Ave # G, Ontario 91761 | (909) 923-0494 |
| Metro Grinding & Thread Rllng 1145 Brooks St # B, Ontario 91762 | (909) 391-2009 |
| Gary's Grinding & Hard Chrome 2124 S Grove Ave # A, Ontario 91761 | (909) 947-3636 |
| Quality Controlled Precision 117 Melrose Ave, Ontario 91761 | (909) 986-6405 |
| Reliable Inc 780 E Francis St # Mno, Ontario 91761 | (909) 947-5762 |