| 摘要 |
A magnetic dust cap for a pneumatic tire comprising an external valve stem having a threaded top portion having a width, a length, a top end and a bottom end and a rubberized bottom portion having a width and a top end. The magnetic dust cap comprises a body for capping the external valve stem and magnetic means disposed within the body to removably adhere to a washer. The washer is adapted for threaded engagement over the threaded top portion of the valve stem.
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