... , Q235, Q345 Material: S275JR, S275JO, S355JR, S355JO Size: 20x20mm-200x200mm Q 235 steel angleNormal material: Q195, Q235, Q345Material: S275JR, S275JO, S355JR ... , SS540, Q345A, Q345BSize:20x20mm-200x200mmThickness: 2mm-24mm Our company is a professional manufacturer of steel products, which specializing in the production ...