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 ... applicationused for machinery, procesing, structure building, automobile manufacturing, shipbuilding, electric powerhot sale size please check as below:100*100, 125*125, 150 ... JIS standard weight ; W2-GB standard weight h beams for sale