| 摘要 |
<p>The mold for shaping the sole and providing studs on the underside of the sole has a pre-moulded portion of wear-resistant rubber disposed in it at a position which is exposed to heavy wear in use. The rest of the sole, made of conventional rubber of lower wear resistance, is then moulded round the pre-moulded portion. The latter may be carbon-fibre reinforced and be partially cured during premoulding. A bonding layer may be introduced between the insert and the body of the sole.</p> |
