... : WELDING NECK FLANGE, SOCKET WELDING FLANGE, SLIP-ON BOSS FLANGE, BLIND FLANGE,SCREWED BOSS FLANGE, LAPPED FLANGE. PRESSURE GRADE:150 , 300 , 400 ... 10 : WELDING NECK FLANGE, PLATE SLIP-ON FLANGE, SCREWED BOSS FLANGE, SLIPON BOSS FLANGE, BLIND FLANGE TYPE:Table: D, E, F, H ...