... ) Plain & Slot MS Channel steel bar1.Origin: Tangshan city 2.Standard: GB , JIS ,BS , ASTM 3.Steel grade: Q195,Q235,Q345 ... :Q195-Q235. ASTM A36, SS400.ect4. Standard: GB , JIS ,BS , ASTM, DIN.5. Size: meet Standard size or as buyer's request .6 ... . Length: 5.8M, 6M, 8M, 9M, 12M.7 ...