| 摘要 |
A hubcap for a wheel comprising a generally cup-shaped member adapted to be secured to a wheel and having a vent opening formed therein. A vent plug is positioned in the vent opening which permits the passage of air therethrough but which prevents the passage of water and contaminants therethrough. A grease shield is positioned at the inner surface of the end wall of the cup-shaped member for preventing grease or oil from coming into contact with the vent plug.
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