... B16.9Material:alloy steel,Carbon steel,Stainless steelPlace of Origin:ShangHai CityMaterial Standard:ASTM A335,A234, ... A106,API,Quality Control:1 Materials into the factory inspection before:A:Size check B:UT test ... C:light spectrum check2 Productive Process of check3 Agreementon Preshipment Inspection:A:Size Check ... PalletDelivery Detail:As Customers’ inquiryment All Kinds Of Pipes And Fittings