I beam (1) material: Q235,SS400,A36,ST37-2,EN10025,S235JR ( ... *3.6mm-630*180*17mm (3)packing:bundle with strips I beam(1) material: Q235,SS400,A36,ST37-2,EN10025,S235JR ... -630*180*17mm(3)packing:bundle with strips GB standard I beamModelh(mm)b(mm)d(mm)Theoretic Weight(kg/m ...