JIS BLIND Flanges 1.Standard:ASME , API, AWWA, BS, DIN, JIS,EN 2.Size:DN15-DN2000 3.cs ss NPS 6" JIS-Flanges ALLOY Steel BL ProductsFlangesWN(welding-neck);SO(slip-on);PL(Plate);BL(Blind);TH(Threaded);SW(socket-welding);LF/SE(lapped flange/stub end);LWN(long welding neck);Orifice flange; Reducing flange; API flange; Integral/Compact flange; Spectacle blind ,Lind spade and spacer, Paddle blind, ...