H shape structural steel 1.steel grade:Q235,Q345, ... 100*100-900*300mm high quality H shape structural steel1)Commodity:high quality H shape structural steel2)Material: Q235B,SS400,S235jr high quality H shape structural steelSIZE ( ... check below4.length6m or 12m5.applicationused for machinery, procesing, structure building, automobile manufacturing, shipbuilding, electric powerSize details please check ...