... .Cerficate:ISO 3.Stock information: in stock 321 large diameter Stainless Steel Pipe321 large diameter Stainless Steel Pipe1.High quality and competitive ... ,etc.Surface Finish2B, 2D, BA,No.1 No.3, No.4, No.8, 8K, HL(Hair Line) ,PolishedThickness0.6mm-60mm Outer ...