
Building Material ASTM A36 Grade Black Rectangular Steel Pipe Hollow Section. Wide Material Range: Available in Q195, Q215, Q235, Q345, 10#, 20#, 45# grades. Flexible Dimensions: Thickness 0.8-20mm, Length 2-12m, Outer Diameter 10*10-100*100mm. Multiple Surface Treatments: Options include hot dipped galvanized, electro galvanizing, and spray paint. Fast Delivery: Delivery within 30 days after receiving deposit. OEM Service Available: Full customization, minor customization, and customization from samples or designs. Versatile Applications: Suitable for construction, agriculture, machinery, and liquid transport. Multiple Standards: Complies with GB/T3091-2008, BS1387-1985, ASTM A53, A106, and DIN standards. Competitive Pricing: Offered with good quality and fast delivery by an experienced trading company.