... Co.,Ltd are profesional manufacturer of high quality Nickel Alloy flanges, used in various industry like Chemical, Aerospace, Marine, Petrochemical, ... Neck (LWN)Faces: - Raise (RF), Flat (FF), Ring Type Joint (RTJ), Ring Joint (RJ), Tongue and Groove (TG), Male and Female ... S21953- High temperature alloy GH600, GH3128, GH3030, GH2132, GH1140Our standard Flanges:- ANSI B16.5, B16.47- ASME B16.5, B16.47 ...