... equality and mutual benefit Carbon Steel Welding Neck FlangeOther Type: Slip-On, Welding Neck, Blind, Socket Welding, Lap Joint,Threaded and Plate etc ... F316L 2 LONG WN 1/2"--24" 150-2500LBS Long welding-neck A105, A350LF2,A182 F304/F304L,F316/F316L 3 ... 420 TYPE01,02,03,04,05,11,12,13,14,15,21,32,33,34 ISO2604-1 F8 F9 F13 ... 420 TYPE01,02,03,04,05,11,12,13,14,15,21,32,33,34,35 NFE29204 BF 42 BF42NBF48 ...