1.Product name: U beam steel 2.Size:50-300mm 3.Standards: GB,JIS,EN 4.Length: ... U channel, U steel, Hot rolled U channelMaterial: SS400, ST37-2, A36, S235JR, Q235, Q345 etc. Standard: GB/JIS/EN/ASTM ... *3mm-300*90*13mm American standard size:102*40*3.2-305*80*13mm ASTM STANDARD CHANNELSSpecificationStandard Sectional Dimension (mm)Web ...