Cold Rolled Black Annealed Steel Pipe

Square Outer Diameter: 10x10mm - 100x100mm  Rectangular Outer Diameter: 10x20mm- 50x100mm  Round Outer diameter: 10mm - 100mm  Thickness: 0.45mm - 2.5mm  Length: as requested ( normal 5.8M,6M,11.8M)  Standard: ASTM A53, BS1387, GB  Material: Q195, Q235,Q345  Packing: in bundles  Surface Treatment: Oiled / Water proof cloth  MOQ: 5tons of each size  Delivery time: 25days