... EN,AISI welded INOX 201 stainless steel pipe,201 welded tube erw 0.27mm 17mm tube Manufacture Standard ... ,Hydrostatic Test,Hardness Test,Impact Test,Flaring Test,Corrosion Test,stainless steel 201 tubesAvailable pipes & tubesStyle (Round / Oval / Square ... diameter(mm) :8,9.5,11,12, 12.7,14.5, 15.9, 17,18,19,20 ... 600#,400#, 320#, 240#, 180#.etc.7)Tolerance: a) Outer diameter: ±0.15mm b) Thickness: ±10% of ...