ASME B16.9 Steel Buttwelding Fittings
ASME B16.9 Standard covers overall dimensions, tolerances,ratings, testing, and markings for factory-made wrought buttwelding fittings in sizes NPS 1⁄2 through NPS 48 (DN 15 through DN 1200). ASME B16.9 Pipe elbows Interanational mark for delivery Measuring...