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ASME(ANSI) Standards B16.9 Factory-Made Wrought Steel Butt-Welding Fittings B16.28 Wrought Steel Butt-Welding Short Radius Elbows and Returns B16.25 Butt Welding Ends B36.10 Welded and Seamless Wrought Steel Pipe B36.19 Stainless Steel Pipe ASTM Standards A105 Standard Specification for Carbon Steel Forgings for Piping Applications A234 Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service A403 Wrought Austenitic Stainless Steel Piping Fittings A420 Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low Temperature Service A815 Wrought Ferric, Ferric/Austenitic, and Martensitic Stainless Steel Piping Fittings MSS Standards SP-43  Wrought Stainless Steel Butt-Welding Fittings SP-75  High Test Wrought Butt-Welding Fittings SP-79 Socket Welding Reducer Inserts SP-87 Factory-Made Butt-Welding Fittings for Class I Unclear Piping Applications JIS/KS Standards JIS B2311/KS B1522 Steel Butt-Welding Pipe Fittings for Ordinary Use JIS B2312/KS B1541 Steel Butt-Welding Pipe Fittings JIS B2313/KS B1543 Steel Plate Butt-Welding Pipe Fittings JIS B2220  Steel Welding Pipe Flanges DIN Standards 2605-1  Steel Butt-Welding Pipe Fittings; Elbows and Bends with Reduced Pressure Factor 2609 Steel Butt-Welding Pipe Fittings; Technical Delivery Conditions 2615-1 Steel Butt-Welding Pipe Fittings; Tees with Reduced Pressure Factor 2615-2 Steel Butt-Welding Pipe Fittings; Tees for Use at Full Service Factor 2616-1  Steel Butt-Welding Pipe Fittings; Eccentric Reducers with Reduced Pressure Factor 2616-2 Steel Butt-Welding Pipe Fittings; Reducers for Use at Full Service Pressure Factor 2617 2617 Steel Butt-Welding Pipe Fittings; Caps BS Standards BS1965 Steel Butt-Welding Pipe Fittings BS4504 Circular Flanges for Pipes, Valves and Fittings EN Standards 10253-1 Butt-Welding Pipe Fittings; Wrought Carbon Steel for General Use and Without Specific Inspection Requirements

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