... 3.ANTIRUST OR BLACK PAINTED FLANGE ANSI FLANGE1.1/2"~78",DN15~DN20002.SLIP-ON. ... WELDING NECK.BLIND FLANGE3.ANTIRUST OR BLACK PAINTED FLANGE ANSI FLANGE1.Pruduct Name ANSI ... FLANGE2.Type of Flange SLIP-ON.WELDING NECK.BLIND FLANGE,SOCKET WEDING,THREADED,LAP JOINT3.Size of Flang 1/2 ... steel flange:A105,SS400,SF440,RST37.2,S235JRG.2,S235JRG2.P250GH.C22.8 Stainless Steel ...