... welded sqaure tube By Surface Treatment Hot dip galvanized sqaure tube Electro-galvanized sqaure tubeOiled sqaure tubePickling sqaure tubeBy Wall Thickness ... I-Beam, Channel, Angle, H-Beam, C-Beam, Galvanized Steel Coil, Hot Rolled Steel Plate, Cold Rolled Steel Plate ... Mild Steel Plate, Structure Steel, difference kind of pipes, Galvanized Steel Pipe, Seamless Steel Pipe, Square/Rectangular Steel Tube, ...