... SUS304/304L, F304/304L, F321, F304H, F347 Stainless steel Blind Flanges 1. Standard: DIN, ANSI/ASME B16.5, GOST, EN1092 ... F304/304L, F321, F304H, F347H, F317L, F316/316L, F316Ti... 3. Type: WN, SW, TF, LJ, SO, BL, PL... ... productioni comes to 5000 tons of the stainless steel flanges, duplex flange and alloy steel flange, which ... industry, space, machinery accessory etc... Stainless steel Blind Flanges