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Related Clues:
- Pipe edge
- Tire part with a cap
- Structure with a flap to ensure one-way flow
- Steam radiator device
- Flat rim on a wheel to keep it on a rail
- Flow-regulating device
- Regulator very vigorous? Not I
- Trombone button
- Projecting rim of a metal beam
- One of four in the human heart
- Part of the human heart
- Key for a trumpet
- Raised edge of baked product, turnover for example
- Projecting collar or rim for keeping a position on a rail
- Opening device