I beams Material: Q195,Q235,Q345 Size: 100-650(according your request ) Length: 5-12 I beamDescription: I beam, also called girder, is one ... inquiries: product name, standard performed, materials, specification (geometry dimension), quantity, weight of bundle, handling time, length, measure ways.SpecificationsChinese standardTheoretical weight6MLight ... 3.0±0.76M/9M/12M220250280300320±3.5±0.8 I beams