ASTM stainless steel pipe 1.Model nuber:201,202,304,316L,430, ... .Outer diameter :6mm-159mm 3.Thickness:0.3mm-3mm ASTM stainless steel pipe 1.Model nuber:201,202,304,316L,430 ... .Outer diameter :6mm-159mm 3.Thickness:0.3mm-3mm ASTM stainless steel pipe1.Material:201,202,304,316L,430,etc 2 ...