1.Name:U channel 2.Size:50*37--400*104 3.Standards:GB,JIS,ASTM,EN,DIN 4.Length:6-12m ... ,A36,S235JR SS400/SS540 hot rolled mild steel JIS standard U Channels Mild steel U channel, U steel, ... : SS400, ST37-2, A36, S235JR, Q235, Q345 etc. Standard: GB/JIS/EN/ASTM/DIN and others.Packing: In Bundle,Fasten ... U channel, Channel for shipment3.Loading pic4.Contact person GB standard U shape channel steel Q235B