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Amazon.com: Surprecision Metal Strut Channel with Slotted Back 1200mm/47.24" 304 Stainless Steel U Channel 2 Pcs Heavy-Duty Framing Steel Channel - Efficient Support Solution (Thickness 2mm, Size 28x11mm) : Industrial & Scientific
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1.625" x 3.25", 36 inches, 304 Stainless Steel Back to Back Slotted Strut Channel - Online Metal Supply
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Amazon.com: Surprecision Metal Strut Channel with Slotted Back 500mm/19.69" 304 Stainless Steel U Channel 2 Pcs Framing Steel Channel - Efficient Support Solution (Thickness 2mm, Size 41x41mm) : Industrial & Scientific
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