... From 1/2 to 30 (Seamless Pipe Fittings),From16 to 72(Seam Pipe Fittings)ScheduleSCH STD, XS, ... UNS S31803, UNS S32750, UNS S32760 STANDARDSANSI, ISO, JIS, DIN, BS,GB, SH, ... HG,QOST,ETC.certification:ISO9001:2008 , API , ASME,CE, HSEApplications range: Petroleum, chemical, power ... 1016.we can also produce according to the customer requirement.3Ultra supercritical thick wall pipe fittingMaterial : ...