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| The Specialty MFG. Co 5858 Centerville Road - St. Paul, MN 55127 USA - - | |
| F&H Nozzle Specialists Inc. 505 No Yosemite St. - Stockton, CA 95203 USA - - fhnozzle@yahoo.com | ||
| Clippard Instrument Laboratory, Inc. | ||
| Marsh Bellofram | ||
| Andrews Glass Company | ||
| BuTech Pressure Systems | ||
| Boston Gear | ||
| Pneucon | ||
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