S355jr Galvanized Structure Steel H Beam I BeamFeatures:1. Size:Flange Width: 100~700mm,Flange Thickness: 6~45mm, Web Width: 50~300mm,Web Thickness: 6~70mm2. Steel grade: S235J0, S235JR, SS400, A36, Q235B, Q345B, S355J0,S355JR3. Standard: ASTM, ANSI, GB, DIN, JIS, EN, ISO.4. Surface treat......