Q345 steel H-beam 1.Standard:ASTM,AISI,EN,DIN,BS 2.Material:Q235,Q345, ... ,S275JR,etc 3.in stock with fast delivery DescriptionQ345 steel H-beamsStandardASTM,AISI,SUS,JIS,EN,DIN,BSMaterialQ235B,Q235,Q345B,SS400 ... any questions,pls contact me with no hesitate. Q345 steel H-beam