U channel steel Standard: GB, JIS, ASTM Size: 63*40-220* ... : Q235, Q345, SS400, ST37-2 MOQ: 5 TON U channel steelSize: 50mm*37mmLength: 4.8m-12m.The length and thickness ... the bar, also used for industrial workshop beam and column, channel, also often such components used and choices. Packing: seaworthy packing ... production certificate.If there are some questions about U channel steel free to contact me