H beam steel structure warehouse, workshop, hangar, exhibit ... processing; Application:Special for light steel structure construction.H beam is an new production for construction and easy ... compared with hot rolled sections. The usage of H beams: 1.Beams or columns of steel structure in industrial ... .Large beams of trains,automobiles and tractors. Size: Standard H, Standard:DIN, JIS,ASTM, GB Grade:GB/ T ...