... *4.55#5.4463**40*4.86.3#6.63565*40*4.86.5#6.780*43*58#8.045100*48*5.310#10 ... .007120*53*5.512#12.06126*53*5.512.6#12 ... .b.Sizes:50mm-400mm, Thickness:4.5mm-20mmc.Length:5.5m,5.8m,6m,12m etc.,or as you required.d.Packaging ... & Export Trade Co.,LTD. channel steel sizes 50*37*4.5----280*84*9.5mm hot rolled