... . 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. Packing: with bundles and ... wall, doors and windows, railway and traffice systom , vehchile ,machineExcept U channel, we also deal with Angle steel bar, H and I ...