... A234 WPB ANSI B16.9 standard: ASTM, ASME, GB, JIS,DIN, BS ISO9001/9002 ItemCatalogDescription1ProductsFlange,Elbow,Tee,Reducer,Cap,Cross ... SCH160,SCH STD,SCH XS,SCH XXSClass 150----Class 60009StandardASME,JIS,DIN,GB,etc10CertificateISO9001 ISO14001 CE11SurfaceBlack painted, Galvanized,3PE12Placeof OrignCangzhou, ... natural gas industry 5. Chemistry industry 6. Electric industry JIS stainless steel pipe