steel H-beams Q235B Hot rolled Steel H beam Grade:Q235B,SS400,Q345B,A36 Size:100*100mm-900*300mm Length:6m 10m 12m ... Steel H beam Grade:Q235B,SS400,Q345B,A36 Size:100*100mm-900*300mm Length:6m 10m 12m Standard: GB,JIS,EN ... *405182824296.5233428*407203524361.4284458*417305024529.3415498*432457024770.8605 steel H-beams