Steel I-beam 1.Grade:Q235B,Q345,SS400,A36,etc. 2. ... -12m 1.Grade:Q235B,Q345,SS400,A36,etc2.We can supply the specification as bellows,Standard AISI,ASTM,GB,etcGrade201, 304 ... , 316, 321, 316LDescriptionStianless steel I-beam, I-stee l ,H-steelSurfaceBright, polished ,peeled, cold ...