| 摘要 |
<p>A bladder of a sports ball and a sports ball that made use of the bladder are provided. To improve the sports ball's production efficiency, control property, abrasion wear and perfect spherical shape, a reinforced layer is made with molding or blowing mold. The reinforced layer is spherical, which surrounding an inner tire that with valve for air inflating. The reinforce layer and the inner tire are composite of the bladder.</p> |
