... ,carbon Standard:ASME,BS,GOST,etc API,ISO,CE,etc pipe fittingsSize -- Seamless:from 1/2" to 24" ,Welded:from ... ,ultrasonic flaw detection ,magnetic powder detector ,etcQualification-- API ,CE ,ISOPacking-- in wooden cases or as your requirementApplication--Petroleum, chemical, machinery, electric ... , construction, etcSpecial design available as the requirement of customer] seamless pipe fittings SCH40