... of Origin:Hebei China(mainland) materail: cs and ss coating:rust proof oil,yellow,galvanized We can supply ... various standard and material flanges FLANGE:WELDING NECK ,SLIP ON ,BLIND ,PLATE,THREADED,LAPPED ,SCREWDE,SOCKET WELDING PRESSURE: ... NECK FLANGE2)ANSI B 16.5 :WELDING NECK ,SLIP ON ,THREADED,LAP JOINT,SOCKET WELDING ,BLIND ,NO PLATE FLANGE ... you soon. SABS 1123 FORGED CS AND SS SLIP ON FLANGE