... ,Q345B, SS400, S235JR, S275JR, S355JR 3) Standard:GB/T11263 One kind of profile bars with "I" shape section, the specification is usually ... ,Q345B, SS400, S235JR, S275JR, S355JR3) Standard:GB/T11263application: Can be widely used in various construction structure, bridge,blackets,mechanism and ... 180mm,web thickness:4.5-17mm or others. Length:6/9/12mPacking: in bundle or as per clients' requirements JIS ...