Carbon steel I Beam Grade:Q235B,Q345,SS400,A36,etc. Size: ... 12m Best quality,best price We are a biggest Structural steel supplier inTangshan,China,mainly focur on : 1) H beams ... and I beam,2).Angel steel and channel steel,3).IPE and IPEAA 4).Steel plates and Hot rolled sheet coils5 ... we are a first agent of Jinxi Steel Group,Laiwu Steel goup and Changzhi Steel group,which are three of the biggest ...