... ,GB Q235--Q345,ASTM A36,DIN STANDARD, EN STANDARD, etcAll sizes from Size 20--Size 200CHANNEL STEELSpecification: JIS G3141, GB Q235 ... , 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, IPE, IPEAA, etcAll sizes as per your requestsFLAT BARSpecification: JIS G3141,GB Q235--Q345 ...