... U channel iron sizes b.sizes:50*25*3-305*80*13mm c.Material:Q235,A36,SS400 d.Good quality e.Factory price U channel ... GB, JIS, IPE, ASTM, DIN.Specifications:a.Hot rolled U channel steel for building.b.Sizes:50mm-400mm, Thickness:4.5mm ... 315-5417677 Mobile:0086-18716078906 Ms SarahSizes as follow: U channel modelmodelweight/m(kg)50*37*4.55#5.4463**40 ... .540#A58.928400*102*12.540#B65.208 U channel iron size