... :1) Round pipes - Outside diameter(mm) :8,9.5,11,12, 12.7,14.5, 15.9, 17,18,19,20,22 ... .24- 3.0mm5) Length: 6m (or according to customers' requests)6) Polishing: 600#,400#, 320#, 240#, 180#.etc.7) Tolerance: a ... AISI 201 304 430 stainless steel series round/ square /Rectangular tube/pipes