Combination & Joint FittingsChina Super Duplex F44 Weld Neck Flange 10" Wn/RF, Class 150# Material, Sch 80s Stainless Steel, Find details about China Alloy Steel Flange, Super Duplex from Super Duplex F44 Weld Neck Flange 10" Wn/RF, Class 150# Material, Sch 80s Stainless Steel