... -12m 4. Origin: Tangshan, Hebei province Hot rolled structural steel H beamGrade: Q235B, Q235, Q345B, SS400, A36…Standard: JIS/ ASTM/ GB ... as the customers’ requirements.Usage: (1).used for the plant, high-rise building construction (2).used for the bridge, shipment building ... or in bundle. Common Size Specification (h*b*t1*t2)Theoretic Weight(kg/m)Chinese Standard(GB) Japanese Standard(JPS)100*100 ...