... A36,S235JR SS400/SS540 hot rolled mild steel JIS standard U Channels Mild steel U channel, U steel, ... , ST37-2, A36, S235JR, Q235, Q345 etc. Standard: GB/JIS/EN/ASTM/DIN and others.Packing: In Bundle,Fasten ... client's requests. Length: 6meter, 9meter, 12meterChinese standard size: 50*37*4.5mm -320*88*8mm Japanese ... , Channel for shipment3.Loading pic4.Contact person GB standard U shape channel steel Q235B