Prefab House, Container House, Folding House manufacturer / supplier in China, offering Exporter H Beam Atsm A36 Q235 Q345 H Shaped Strucural Steel Hot Rolled H Beam 100*100mm 150*150mm Standard Size H Beam for Offshore Building, Exporter H Shaped Strucural Steel Atsm A36 Q235 Q345 Hot Rolled H Beam 100*100mm 150*150mm Standard Size H Beam for Offore Building, H Shaped Strucural Steel Atsm A36 Q235 Q345 Hot Rolled H Beam 100*100mm 150*150mm Standard Size H Beam for Bridge Construction and so on.