... ON, WELDING NECK, BLIND FLANGE 3. ANTIRUST OR BLACK PAINTED FLANGE ANSI FLANGE 1. 1/2"-78", ... 2000 2. SLIP-ON, WELDING NECK, BLIND FLANGE 3. ANTIRUST OR BLACK PAINTED FLANGEANSI FLANGE1) ... Product Name: ANSI FLANGE2) Type of Flange: SLIP-ON, WELDING NECK, BLIND, SOCKET WELDING ... RST37.2,S235JRG2,P250GH,C22.8 Stainless Steel Flange: F304 F304L F316 F316L 316Ti5) Surface Treatment ...