h shape steel beam steel grade:Q235,Q345,SS400 standard:JIS,GB/ ... -1998 size:100*100-900*300 length:6 or 12m h shape steel beamh beam1.standardJIS standard, GB/T11263-19982.steel gradeQ235 ... .5OKRemark H-waist height ; B-leg breadth ; T1-waist thickness ; T2-leg thickness ; W1-JIS standard weight ; W2-GB standard weight h shape ...