... #-63# ( Japan, Europe standard ) Material: Q235, Q345 2. hot rolled channel steelSize: 5#-40# ( Japan, Europe standard ) Material: Q235, Q345 3 ... *300m Material: Q235, Q345 5. hot rolled flat bar, chord plate, galvanized flat bar Size: 12mm-300mm Material: Q235, Q345, 60SiMn ...