... 1/2"-80" material: steel Certification:ISO9001:2000,ISO14001,CE0036 Guarantee: 18months CE0036 ISO9001 steel welded neck flange1.specificationStandards: ANSI(ASME ... ,A182 F304/F304L,F316/F316L 3 ANSI B16.47 A(MSS SP-44) 26"--60" 150--900LBS BL,WN ... PN5K,10K,16K,20K,30K SOP(PL) SOH(SO A B C ) WN JIS G3101 SS41 JIS G3201 SF40A ... 4404 1.4541 1.4571/DIN174402.picture CE0036 ISO9001 steel welded neck flange