... , fireproof, painting processing; Application:Special for light steel structure construction.H beam is an new production for construction and easy to be ... be decreased compared with hot rolled sections. The usage of H beams: 1.Beams or columns of steel structure in industrial ... H, Standard:DIN, JIS,ASTM, GB Grade:GB/ T:GB/ T:Q235.Q345 DIN:St37-2,S355N JIS:SS400 ASTM:1020 Steel beam ...