Hot rolled structural steel H beam 1. Standard: GB, JIS, ASTM 2. Length ... 3.Grade: Q235B, Q235, Q345B, SS400, A36 Hot rolled structural steel H beamGrade: Q235B, Q235, Q345B, SS400, A36…Standard: JIS ... ).used for the bridge, shipment building (3).used for lifting and transportation machinery, equipment manufacturing base building (4).used ... .8900*300*16*28243240.1 hot rolled structural steel H beams