High Quality Q235 Q235B 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150 Galvanized Steel Square Rectangular Pipe

High Quality Q235 Q235B 20X20 25X25 40X40 50X50 60X60 20X40 30X50 40X60 150X150 Galvanized Steel Square Rectangular Pipe. Hot-Dipped Galvanized Protection: Thick zinc coating (45-85 um) offers decades of rust resistance for severe outdoor environments. Customizable Dimensions: Lengths available from 5m to 14m or fully customized to customer specifications. Wide Material Selection: Available in Q195, Q235, Q345, and Q235B carbon steel grades. Strict Quality Inspection: Every batch undergoes testing for zinc thickness, wall thickness, and surface gloss. Flexible Surface Treatment: Options include black, color painting, PVC coating, or custom treatments upon request. Diverse Pipe End Options: Available in plain, beveled, threaded, grooved, or cut square ends. Free Sample Availability: Free samples provided with express shipping service to global destinations. Fast Delivery Time: Standard delivery within 7-15 days, subject to order volume and special circumstances.