... :Q235 <SS400> ,Q 345B 3>Standard:GB/T 11263-2005 Hot Rolling H Section Steel ,Steel H-Beam,H profiled steel,Steel beamH type steel,Building metallic Material,Steel ... *340*20*22mmApplication for the :structure,New-Building and ,Bridge H ,T, C, Profile Steel( Beam),Rolled Steel Girder,Section Steel-->TYPE Q235 <SS400>,Q345B(SM49OYB ,SM49OA )