Angle iron : It is an iron or a steel structural bar ... L-shaped cross section which is used in structure, shipbuilding, Angle iron: Normal materialQ195, Q235, Q345MaterialS275JR, S275JO, S355JR, S355JOSize:20x20mm-200x200mmThickness ... steel tube, angle steel, H-beam. channel, I-beam, Hot and cold rolled steel sheet, middle thickness plate, pattern plate, galvanized plate, kinds of ...