Steel I-beam 1.Grade:Q235B,Q345,SS400,A36,etc. 2.Size: 10-63mm 3. ... :6-12m Steel I-beam 1.Grade:Q235B,Q345,SS400,A36,etc. 2.Size: 10-63mm 3.Length ... 6-12mMild Steel I-beam 1.Grade:Q235B,Q345,SS400,A36,etc2.We can supply the specification as ... stee l ,H-steelSurfaceBright, polished ,peeled, cold drawn, hot rolledLength6 meter or as your requirementHight10-40mmWaist high10-63mmWidth12-200mmThickness4 ...