... .4539, F44, F51, SUS304/304L, F304/304L, F321, F304H, F347 Stainless steel Blind Flanges 1. Standard: DIN, ANSI/ASME B16.5, GOST, EN1092 ... , F316Ti... 3. Type: WN, SW, TF, LJ, SO, BL, PL... 4. Face type: RF, FF, RTJ... We are specialized in the ... alloy steel flange, which can be used in pharmacy, tube, pipe industry, oil and gas industry, space, machinery accessory etc... Stainless steel Blind Flanges ...