M.S I Beam Grade:Q235B,Q345,SS400,A36,etc. Size: 100* ... supplier inTangshan,China,mainly focur on : 1)M.S H beams and M.S I beam,2).Angel steel and channel steel ... (h,b,d)GradehbdSection area CM2Theoreticai Weight kg/m400A*142*10.540a40014210.586.11267.598400B*144*12.540b40014412.594.11273.878400C ...