| 摘要 |
A disc of a disc brake for vehicles in general and for high-performance cars in particular, which is of unusually low weight, comprises a hub and an annular brake member traversed by ventilation ducts extending between an internal annular face element and an external annular face element of the annular brake member interconnected by bridging columns, a projecting portion of the brake member being embedded in the hub during the manufacture of the hub by casting in a light alloy.
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