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2" x 1" Channel Metal Bar - 3/16" gauge - Mild Steel - 48" inch Long (4-ft) | eBay
Everbilt 1/2 in. x 1 in. x 36 in. Plain C-Channel 800187 - The Home Depot
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Steel U Channel 1/4in | SS907
Steel C-Channel | .125" Thickness - 1 ½" W x 1/2" H x 36" L - My Metal Supply, LLC
Hot Rolled Steel Bar Channel | Coremark Metals
Amazon.com: Electriduct Strut Channel Slotted 12-Gauge Galvanized Steel C-Profile Metal Framing 1-5/8 x 1-5/8" 3 Feet : Industrial & Scientific