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2" x 3" Aluminum Angle 6061 T6 x 84"-Long x 1/4"Thick- 2" x 3" x 1/4" 6061Angle | eBay
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Hillman 3/4-in W x 1/2-in H x 4-ft L Mill Finished Aluminum Offset Angle in the Angles department at Lowes.com
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