... detailed information of section steel.NameStandardMaterialAngle steel25*25*3/4 30*30*3/4 Q235B,Q345B Angel steel40*40*3/4 50 ... #,14# Q235B,Q345BChannel steel16#A/B,18#A/B,20#A/BChannel steel22#A/B,25#A/B,28#--36#A/BBeams steel8#,10 ... #,16#,18# Q235B,Q345BBeams steel20#A/B,22#A/B,25#A/BBeams steel28#A/B,30#A/B--56#A/BIf you are interested ...