ASME B16.42:2016 pdf download Ductile Iron Pipe Flanges and Flanged Fittings Classes 150 and 300 3.2 Ratings of Flanged Joints
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ASME B16.47:1996 pdf download LARGE DIAMETER STEELFLANGES NP8 28 Through NP8 60 1.10 Denotation 1.10.1 Pressure RatingDesignation. Class, followed by
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