h beams for sale steel grade:Q235,Q345,SS400 standard:JIS,GB/T11263 ... below4.length6m or 12m5.applicationused for machinery, procesing, structure building, automobile manufacturing, shipbuilding, electric powerhot sale size please check as ... below:100*100, 125*125, 150*75, 150*150, 148*100, 198*99, 200*100, 248 ... W1-JIS standard weight ; W2-GB standard weight h beams for sale