AWWA C207 Flange Class
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| Class 2B AWWA Standard Steel-Ring Flange |
Class 2D AWWA Standard Steel-Ring Flange |
Class 3D AWWA Standard Steel-Hub Flange |
| Class 4E AWWA Standard Steel-Hub Flange |
Class 5E AWWA Standard Steel-Ring Flange |
Class 6F AWWA Standard Steel-Ring Flange |
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