... ASME B16.9Material:alloy steel,Carbon steel,Stainless steelPlace of Origin:ShangHai CityMaterial Standard:ASTM A335,A234,A213,A403 ... A:Size check B:UT test C:light spectrum check2 Productive Process of check3 Agreementon Preshipment Inspection:A:Size ... D: metallographic analysis E: light spectrum checkColour:Black,yellow,Red,Blue,Green,Silvery and no colour and as Customers’ inquriymentMarking: Materal ...