Below is a directory of slotted channel framing manufacturers (MF 05 43 00) with links to get more information about each company.
| Carpenter & Paterson, Inc. | Cooper B-Line, Inc. |
| Haydon Corp. | Republic Storage Systems Co., Inc. |
| Steel King Inds. | Unistrut Corp. |
| Unitron Products, Inc. | Wesanco, Inc. |
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