... supply various standard and material flanges FLANGE:WELDING NECK ,SLIP ON ,BLIND ,PLATE,THREADED,LAPPED ,SCREWDE ... WELDING NECK FLANGE2)ANSI B 16.5 :WELDING NECK ,SLIP ON ,THREADED,LAP JOINT,SOCKET WELDING ,BLIND ,NO PLATE FLANGE 3)DIN :PLATE,WELDING NECK ... ,BLIND ,SCREWED,LAPPED4) EN1092 ,BS 4504:SLIP ON ,WELDING NECK ,PLATE,BLIND,THREADED5) SABS1123:SLIP ON ,WELDING NECK ,PLATE ...