| 摘要 |
Air chamber (circular tube) made from plastic, natural or synthetic rubber, characterised in that it is equipped with two plastic or rubber handles fixed in a diametrically opposite manner on the top, in that it comprises an inner (sheathed) valve, normal pressure registered close to the valve, and in that it is of a colour enabling it to be seen clearly on the surface of the water. The air chamber is intended to be a specific nautical game and/or to be an advertising support.
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