... Welding Neck Flange, Blind Flange, Socket Welding Flange, Flanges: Special Flanges, carbon flange, steel flange, forged flange; with good quality, reasonable price, promptly delivery ... A694 F42, F46, F48, F50, F52, F56, F60, F65, F70 Stainless steel flanges ASTM A182 F304/304L, F316/316L, F316H, F310, F321F44 (UNS ...