... ,GB,JB,API,ANSI,ISO,BS,DIN,NF,JISFireproofing GradeAPI 6FA ,API 607Inspection And TestJB/T9092,GB/T13927,API6D,API598√ Technical SpecificationDesign Standard: ASME ... /T12221, API6D, etc.Adapting Flange: HG,GB,JB,API,ANSI,ISO,BS,DIN,NF,JISTest Standard: JB/T9092,GB/T13927,API6D,API598, etc ...