Traffic signs are generally composed of a sign base, a sign surface, columns, fasteners, foundations, etc. Among them, the sign base is usually made of high-quality aluminum alloy plates, which are light, corrosion-resistant, and easy to process; the sign surface is made of reflective film materials to improve visibility at night or in low light; the columns are used to support the sign to ensure its stability and safety; the fasteners and foundation are used to fix the sign in the designated position.
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