... 3)fine quality 4)best pric SpecificationsHot Rolled U Channel Steel Q195,Q215,Q235A-D,Q345A-D,Q420A- ... :50x37x4.5x7mm-400x104x14.5x18mm Length:6m,9m,12m.U Channel SteelStandard:AISI,ASTM,BS,DIN,GB,JISMaterial:Q235A, ... widely used in construction industry.Chinese Standard(GB/T707-1988): Common Hot rolled Channel SteelSpecification & ModelSpecification & ModelTheoretical weightHighWidthThickness5#50374 ...