23" x 23" Single Layer signs can be made from Aluminum or Steel. Depending on the design and application we will select the best material. Aluminum is one third the weight of steel and does not rust. Steel is stronger and heavier. Either material can be powder coated for a corrosion free protective finish. Raw steel can be treated to give a patina of black oxide or rust industrial look. Aluminum can be polished or brushed.

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