We offer high quality channel steel Q235,Q345,SS400,S235JR 8# to 30# 6M 9M 12M We offer high quality channel ... steel Q235,Q345,SS400,S235JR 8# to 30# 6M 9M 12M channel steel1.size:8#--30#2.material:Q235 SS400 S235JR ... (mm)Flange thickness(mm)Weight (kg/m)50*253.00~5.006.002.37~3.4675*403.807.005.3075*404 ...