... carbon Standard:ASME,BS,GOST,etc API,ISO,CE,etc pipe fittingsSize -- Seamless:from 1/2" to 24" ... WPHY 46,WPHY 42, etc .Equipment -- Press machine ,Bending machine,Pushing Machine,electric bevelling machine Sand-blasting machine,etcTest ... chemical, machinery, electric power, shipbuilding, papermaking, construction, etcSpecial design available as the requirement of customer] seamless pipe fittings SCH40