... . FLANGE: WELDING NECK ,SLIP ON ,BLIND ,PLATE,THREADED,LAPPED ,SCREWDE,SOCKET WELDING PRESSURE: 1. ANSI B 16.5 :CLASS150.300.600.900.1500.2500 2 ... FLANGE 4) DIN :PLATE,WELDING NECK ,BLIND ,SCREWED,LAPPED 5) EN1092 ,BS 4504:SLIP ON ,WELDING NECK ,PLATE,BLIND,THREADED6) SABS1123:SLIP ON ,WELDING NECK ,PLATE,BLIND