... :6 meters, 9m, 12m... standard: JIS,EN Steel I-Beam Material: Q195,Q235,Q345,SS400 I-Beam can be used in a variety of building ... structures,the bridge,the support,etc.Steel I-BeamMaterial: Q195,Q235, Q345, SS400I-Beam ... .Standard: GB,ASTM,DIN,JIS,AISI,BSMaterial: Q195,Q235, Q345, SS400, E235B, SPFC590, E355CCSize: 100mm*68mm*4.5mm to 630mm*180mm ...