FORGED FLANGES DN15-DN1000(1/2"-40") ASME B16.5, EN1092-1, GOST, JIK B2220, DIN, BS4504. Certificates: ISO, PED. Material: STAINLESS STEEL 304/304L/304H 316/316L/316H 321/321H 347/347H Duplex steel F51/2205/S31803 F53/2507/S32750 904L/USN8904 F44/31254/SMO254 Hastelloy steel INCO400/425 600/625 800/825 310/310S C276