| Business | Phone |
| Diamond Plastics Mfg Inc 2330 Burlington St, Kansas City 64116 | (816) 421-8363 |
| A Zahner Sheet Metal Co 1400 E 9th St, Kansas City 64106 | (816) 474-8882 |
| Standard Sheet Metal Inc 405 N Olive St, Kansas City 64120 | (816) 221-5434 |
| Heckert Sheet Metal Works Inc 3016 Wyoming St, Kansas City 64108 | (816) 531-1226 |