... , Q345 etc. 2> Length : 6 meter, 9 meter steel I Beams (ASTM,JIS,EN)Usage : can be widely used in various construction ... necessary for inquiries: product name, standard performed, materials, specification (geometry dimension), itemmeasure(mm)hbd 10100684.512.612674514140805.51616088618180946.520a200100720b200102922a2201107.522b2201129.525a250116825b2501181028a2801228 ...