... ,carbon Standard:ASME,BS,GOST,etc API,ISO,CE,etc pipe fittingsSize -- Seamless:from 1/2" to 24" ,Welded:from ... machine,etcTest-- Direct reading light spectrum, hydrostatic test ,X-ray detector,ultrasonic flaw detection ,magnetic powder detector ,etcQualification-- API ,CE ,ISOPacking-- in wooden ... construction, etcSpecial design available as the requirement of customer] seamless pipe fittings SCH40