... .Material:201,202,304,etc 2.OD:6mm-159mm Thickness:0.25-3.5mm 3.Surface:Mirror,Satin/HL NameStainless ... .0mmLength6m or as customers' request Tolerancea) Outer Diameter: +/- 0.2mmb) Thickness: +/- 0.02mmc) Length: +/- 5mmSurface180G, 320G, 400G Satin / Hairline400G, 500G ... test, crystal rot test, heat treatment, NDT Chemical Composition of Material MaterialComposition201202304316430C≤0.15≤0.15≤0.08≤0.08 ...