... BS, JIS, EN, JB, GB, HG, UNI, API CS, SS, etc Forging Flange Materials: Carbon Steel, Stainless Steel, Alloy Steel Technics: Forged ... Welding Varieties: Threaded Flange, Slip-On Flange (SO), Socket Welding Flange, Lap Joint Flange (LJF), Welding Neck Flange (WNF), Blind Flange, Orifice Flange, Reducing Flange, Pad Type Flange, Loose Hubbed Flange, Welding Plate Flange, Welding Neck Collar, Welding- ...