... ,304H/L,321,310S,347H, ansi b16.5 class 150 weld neck flange1.specificationStandards: ANSI(ASME), AWWA, DIN, EN1092, GOST ... , JIS, BS, UNI, SABSType: welding neck, slip on, bind, threaded, lap-joint, socket weldingPressureMaterial: carbon ... WN 1/2"--24" 150-2500LBS Long welding-neck A105, A350LF2,A182 F304/F304L,F316/F316L 3 ... /DIN174402.picture ansi b16.5 class 150 weld neck flange