... 1.O.D: 6.0mm to 273mm 2.Thinkness: 0.25mm to 6.0mm 3.Material: SS304, SS316 4.Finish:polishing hot sell ... customers' request a) Outer Diameter: +/- 0.2mmToleranceb) Thickness: +/- 0.02mm c) Length: +/- 5mmSurface Finish180#, 320#, 400# Satin / Hairline400#, 600# or 800 ... pressure test, crystal rot test, heat treatment, NDT Material201202304316430 Composition C≤0.15≤0.15≤0.08≤0.08≤0.12Chemical ...