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Document Designation and Title Year Select Item(s) A126 Standard Specification for Gray Iron Castings for Valves, Flanges, and Pipe Fittings 04 A126 Standard Specification for Gray Iron Castings for Valves, Flanges, and Pipe Fittings 95(2001) A126 Standard Specification for Gray Iron Castings for Valves, Flanges, and Pipe Fittings 95e1 A126 Standard Specifications For Gray Iron Castings For Valves, Flanges, And Pipe Fittings 66