JIS Standard Hot Rolled H-Beam, Size from 100mm - 400mm

GB Standard Welding H beam,size from100mm - 450mm

For details, please refer to the attachment for Plane View

EN Standard: EN10034-1994
Material Grade: S235JR,St37-2

GB Standard: GB/T 706-1988
Material Grade: Q235B

GB Standard: JG/T 137-2001 (For Welding H Beam)
Material Grade: Q235B,Q345B