... , Petrochemical, Energy, Nuclear, Automotive, Military, and so on..ANSI B16.5 FlangeClass:- 150, 300, 400, 600, 900, ... WN), Slip-on (SO), Blind (BL), Socket Weld (SW), Lap Joint, Threaded (TH), Orifice, Plate (PL), LongWelding Neck (LWN) ... alloy GH600, GH3128, GH3030, GH2132, GH1140Our standard Flanges:- ANSI B16.5, B16.47- ASME B16.5, B16. ... -577-8588-8633Website: www.chinachaowei.com ANSI B16.5 Flange