... follow: U channelmodelmodelweight/m(kg)50*37*4.55#5.4463**40*4.86.3#6.63565*40*4 ... B23200*73*720#A22.637200*75*920#B25.777220*77*722#A24.999220*79*922#B28.453240*78*724 ... 925#B31.335270*82*7.527#A30.838270*84*9.527#B35.077280*82*7.528#A31.427280 ... Sizes:50mm-400mm, Thickness:4.5mm-20mmc.Length:5.5m,5.8m,6m,12m etc.,or as you required.d ... Trade Co.,LTD. channel steel sizes 50*37*4.5----280*84*9.5mm hot rolled