1.Standard:ASTM A554,ASTM A312 2.Outside diameter:15/15mm~100/100mm 3.Wall thickness:0.25mm~4mm 4.Length:6M,or according to customers'requests 5.Material:201,202,304,304L,316,316L,430,409 6.Tolenrance: a:Out diameter:15/15mm-25/25mm-<0.15mm, 30/30mm-50/50mm-<0.20mm, 60/60mm~100/100mm-<0.30mm b:Thickness: 0.25mm~1.0mm-?.02mm,1.0mm~4.0mm-?.03mm 7.Polishing:400#,320#,180#,150#,240#,80#and hair line 8.Packing:Each in a plastic bag or as customers'requirements