Wrought Iron Pipe Manufacturers
| AK Steel Corp (Middletown, OH)
Manufacturer |
| Allegan Tubular Products Inc (Allegan, MI)
Manufacturer |
| Argus Steel Products (Ashland, VA)
Manufacturer, Contract Manufacturer, Distributor |
| Atlas Tube (Plymouth, MI)
Manufacturer |
| Bent Tube Inc (Fowlerville, MI)
Manufacturer |
| California Steel & Tube (Hacienda Heights, CA)
Manufacturer |
| Chatham Steel Corp (Columbia, SC)
Manufacturer |
| Collier Metals Llc (Atlanta, GA)
Contract Manufacturer |
| D H Griffin Co (Greensboro, NC)
Manufacturer |
| Dormont Manufacturing Co (Export, PA)
Contract Manufacturer |
| Dothan Tubular Products (Dothan, AL)
Contract Manufacturer |
| Florida Stainless Fabricators (Oviedo, FL)
Manufacturer |
| GKN Sinter Metals (Du Bois, PA)
Contract Manufacturer |
| Handy & Harman Tube Co. (Camden Wyoming, DE)
Manufacturer |
| Hofmann Industries Inc (Sinking Spring, PA)
Manufacturer |
| James Steel & Tube (Madison Heights, MI)
Manufacturer |
| Lapham-Hickey Steel Corp (Chicago, IL)
Manufacturer |
| Laser Precision (Libertyville, IL)
Manufacturer |
| Lee Fabricators (Temple, GA)
Contract Manufacturer |
| Marmon/Keystone Corp (Pomona, CA)
Manufacturer |
| Midwest Tube Mills Inc (Madison, IN)
Manufacturer |
| National Galvanizing LP (Monroe, MI)
Manufacturer |
| Northwest Pipe Co (Adelanto, CA)
Manufacturer |
| Oregon Steel Mills Inc (Portland, OR)
Distributor |
| Pennsylvania Powdered Metals (Saint Marys, PA)
Manufacturer |
