... processing; Application:Special for light steel structure construction.H beam is an new production for construction and easy ... usage area of the room can be increased, 10%-30%of steel can be saved and 20% of ... compared with hot rolled sections. The usage of H beams: 1.Beams or columns of steel ... Large beams of trains,automobiles and tractors. Size: Standard H, Standard:DIN, JIS,ASTM, GB Grade:GB/ ...