... ,316L,304H/L,321,310S,347H, ansi b16.5 class 150 weld neck flange1.specificationStandards: ANSI(ASME), AWWA, DIN, EN1092, ... /F304L,F316/F316L 2 LONG WN 1/2"--24" 150-2500LBS Long welding-neck A105, A350LF2,A182 F304/F304L, ... /F304L,F316/F316L 4 BS3293-1960 STANDARD 26"--48" 150-600LBS SO,WN A105, A350LF2,A182 F304/F304L,F316/ ... NS15-2000 PN2.5,6,10,16,25,40 CODE101,102,104,105,111,112,113,121,132,133,134 ...