Model Number ?U Channel Application? in building construction Perforated Or Not ?Is Perforated Processing Service ?Bending, Welding, Punching, Decoiling, Cutting Product name? U Channel Application? Structural Packing? Bundle Material? Carbon steel Q235 or Stainless Steel SS304 or SS316 or ASME standard Surface treatment ?Galvanised Color ?Silver Thickness : 1.5-2.5mm Length ?Customer's Demand Process ?Cold Bending MOQ?100 Pieces