Channel steel
Material:Q235/Q235B/Q345/Q345B/Q195/St37/St42/St37-2/St35.4/St52.4/St35 Length：5800,6000，11800,12000...
Material:Q235/Q235B/Q345/Q345B/Q195/St37/St42/St37-2/St35.4/St52.4/St35 Length：5800,6000，11800,12000...
Material:Q235/Q235B/Q345/Q345B/Q195/St37/St42/St37-2/St35.4/St52.4/St35 Length：5800,6000，11800,12000...
Material:Q235/Q235B/Q345/Q345B/Q195/St37/St42/St37-2/St35.4/St52.4/St35 Length：5800,6000，11800,12000...
Material:Q235/Q235B/Q345/Q345B/Q195/St37/St42/St37-2/St35.4/St52.4/St35 Length：5800,6000，11800,12000...
Material:Q235/Q235B/Q345/Q345B/Q195/St37/St42/St37-2/St35.4/St52.4/St35 Length：5800,6000，11800,12000...