standard : ASME,ASTM,ANSI,DIN,JIS,API,MSS,AWWA size : 1/2" ~ 80" material :,Stainless Steel ItemWelding Neck, Slip-On, ... , Socket Welding, Lap Joint, Blind, PlateFlange FacingRaised Face, Flat Face, Lapped Joint Face, Large Male-Female, Small Male-Female, Large Tongue & Groove, Small ... LF2, LF3Size½" NB to 48 "NBMakeManufacturer & As per design & Specification ANSI Blind flange