grade:Q235,Q345A,SS400,SS490 Standard:GB/T11263-2005,JIS G3101-2004 Hot rolled Q235 grade H-beam modelgradeprovide capacity(ton)specified lengthexecutive standardHot rolled H-beam steelQ235 Q345ASS400 SS4901700006m-18mGB/T11263-2005JIS G3101-2004Specification900*300,890*299,850*300,842*299,808*302,800*300,792*300,750*300,742*300,700*300692*300,650*300,646*299,606*201,600*200,596*199,594*302,588* ...