... oil,yellow,galvanized We can supply various standard and material flanges FLANGE:WELDING NECK ,SLIP ON ,BLIND ,PLATE,THREADED,LAPPED ,SCREWDE, ... 12821 :WELDING NECK FLANGE2)ANSI B 16.5 :WELDING NECK ,SLIP ON ,THREADED,LAP JOINT,SOCKET WELDING ,BLIND ,NO PLATE ... THREADED5) SABS1123:SLIP ON ,WELDING NECK ,PLATE,BLIND We are a leading manufacturer in flanges and pipefittings in China and our products ...