1,H-BEAM 1) Grade: Q235B, Q345B, SS400, A36, A572, S235JRG2, S235JR, S275JR and S335JR 2)Standard: GB/T11263-1998, JLS ,ASTM 3)Size: HW:100*100---400*40 HM:150*100-----400*300 HN:100*50-------400*200