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  1. What are Hub Connectors? | Its Design, Benefits, and Applications

  2. Hub Flange vs Ring Flange – What’s the Difference

  3. Flange Dimensions | ASME B16.5-2017 | B16.47-2017 - Western …

  4. Types of Pipe Flanges for Piping and Pipeline Systems

  5. Class 4E AWWA Standard Steel-Hub Flange

  6. AWWA C207 Class D Hub Flange - Piping & Pipeline

  7. Hub Flange vs Blind Flange – What’s the Difference

  8. Hub Flange vs Blind Flange: Key Differences - MFG Shop

  9. A Comprehensive Guide to Different Types of ASME Flanges

  10. Class 3D AWWA Standard Steel-Hub Flange