St52-3 H Beam Hight:100-400mm Width:100-400mm Web thickness:6-21mm Flange thickness:8-21mm St52-3 H Beam1- Material: Q195,Q235,Q275,Q345,St37,St52,SS400... 2- OEM: Anhui, China. 3- Application: Industrial, construction, bridge, oil drilling platform 4- Dimension categoryhigh*widthH*BHBt1t2kg/mHW(wide flange)100*100100*1001001006817.2125*125125*1251251256.5923.8150*150150*15015015071031.9175* ...