Hot rolled structural steel H beam 1. Standard: GB, JIS, ASTM 2. Length: ... -12m 3.Grade: Q235B, Q235, Q345B, SS400, A36 Hot rolled structural steel H beamGrade: Q235B, Q235, Q345B, SS400, A36…Standard: JIS ... *300*14*26210206.8900*300*16*28243240.1 hot rolled structural steel H beams