... , S275JO, S355JR, S355JO Size: 20x20mm-200x200mm steel angleNormal material: Q195, Q235, Q345Material: S275JR, S275JO, S355JR, SS400, ss355JO, SS540, Q345A, Q345BSize:20x20mm-200x200mmThickness ... , which specializing in the production and sale in the seamless steel tube, angle steel, H-beam. channel, I-beam, Hot and cold rolled ...