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Amazon.com: Hot Rolled Steel Square Tubing, ASTM A-36, 1" x 1", 0.065" Wall, 12" Length : Industrial & Scientific
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Protecto Fence 2 in. x 2 in. x 20 ft. Gray Metal Square Fence Post Tubing 20-008-380 - The Home Depot
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Amazon.com: Prescott Plastics 1 1/2” (38.1 mm) Square Plastic Plug Insert, Black End Cap for Metal Tubing, Fences, Glide Protection for Chairs and Furnitures (10 Pack) : Industrial & Scientific
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Forney 49529 16 Gauge Square Tubing in A36 Mild Carbon Steel Alloy, 1-1/4" x 3' - Arc Welding Equipment - Amazon.com
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Amazon.com: A36 Hot Rolled Carbon Steel Square Tubing - 1 3/4" x 1 3/4" x .120" x 72" : Industrial & Scientific
National Hardware 4067BC 1 in. x 48 in. Square Metal Tube, Plain Steel (Red) 16 Gauge, 215715 at Tractor Supply Co.
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