| Business | Phone |
| Bates Abrasive Products Inc 6230 S Oak Park Ave, Chicago 60638 | (773) 586-9073 |
| Prima International 1313 S Clinton St, Chicago 60607 | (312) 226-0404 |
| Interstate Abrasive Inc 2000 N Mango Ave, Chicago 60639 | (773) 889-4347 |
| Welding Center Inc 7400 S Central Ave, Chicago 60638 | (708) 728-9353 |