... SteelSpecification: JIS G3141,GB Q235--Q345,ASTM A36,DIN STANDARD, EN STANDARD, etcAll sizes from Size 20--Size 200CHANNEL STEELSpecification ... JIS G3141, GB Q235--Q345, ASTM A36, DIN STANDARD, EN STANDARD, etcAll Sizes from Size 100--Size 600I-BEAM STEELSpecification ... JIS G3141,GB Q235--Q345,ASTM A36,DIN STANDARD, EN STANDARD , etc Standard Sectional Dimension mmmm Weight kg/mStandard Sectional ...