ASME B16.47 WN flanges product specifications 1.Material:ASTM A105,Q235,20#,Q345,ST37.0,ST35.8,St37.2,St35.4/8,St42,St45,St52,St52.4,STP G38,STP G42...

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asme b16.5 class 150 flanges asme b16 5 flanges asme b16.9 wn flange

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