Apparatus for a lever for controlling a parking brake including brake units and an electrically driven tightening means for applying or releasing a braking force on the said brake units. The process comprising the steps of: granulate the scrap skin materials. This first electrically insulating layer extends on a second portion of the surface of the substrate and also on a first sidewall of the first semiconductor active region. Output conduits have inputs communicating with the outputs of corresponding input conduits and outputs connectable to corresponding cylinders of the engine. The usefulness of this cache is improved further by reading related media elements data from retrieved metadata items, and then pre-fetching those items and placing them in the cache. The air inlet is downwardly angled relative to the bottom and the product outlet is upwardly angled relative to the bottom.