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Square Sign Post 2.00''x2.00'' Galvanized Metal Perforated Tube. Customizable Dimensions: Cross sections from 1.50" to 2.50" and custom lengths available. High Strength Steel: ASTM A1011 Grade 50 steel with 60,000 psi minimum yield strength. Durable Surface Treatment: Hot-dip galvanized (G90/G140) or powder coated for corrosion resistance. Standard Compliance: Manufactured conforming to FHWA, ATSSA, and ASTM standards. OEM Service Available: Custom materials and specifications tailored to customer demands. Professional Manufacturer: Largest professional traffic safety product manufacturer in China.