... layer changes for free, quick and easy installation. Color Coated Steel Tube with Hot-dipped Galvanized, Anti-Rust, Durable, High ... More Than 20 Professional and Strict Treatments, Have Excellent Resistance In Corrosion, Salt Mist, Oil Fume, Heat and Humidity, ... partially, ECONOMICAL AND CONVENIENT4. Customized Size and Design, Many Color Options, More Tactile Sensations; Not Welded Structure, Good ...