h beams for sale steel grade:Q235,Q345,SS400 standard:JIS,GB/ ... *100-900*300 length:6 or 12m h beams for saleh beam1.standardJIS standard, GB/T11263-19982.steel gradeQ235 ... below4.length6m or 12m5.applicationused for machinery, procesing, structure building, automobile manufacturing, shipbuilding, electric powerhot sale size please check as ... -JIS standard weight ; W2-GB standard weight h beams for sale